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Xiang E, Moran CS, Ivanovski S, Abdal-Hay A. Nanosurface Texturing for Enhancing the Antibacterial Effect of Biodegradable Metal Zinc: Surface Modifications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2022. [PMID: 37446538 DOI: 10.3390/nano13132022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/28/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
Zinc (Zn) as a biodegradable metal has attracted research interest for bone reconstruction, with the aim of eliminating the need for a second removal surgery and minimizing the implant-to-bone transfer of stress-shielding to maintain bone regeneration. In addition, Zn has been shown to have antibacterial properties, particularly against Gram-negative bacteria, and is often used as a surface coating to inhibit bacterial growth and biofilm formation. However, the antibacterial property of Zn is still suboptimal in part due to low Zn ion release during degradation that has to be further improved in order to meet clinical requirements. This work aims to perform an innovative one-step surface modification using a nitric acid treatment to accelerate Zn ion release by increasing surface roughness, thereby endowing an effective antimicrobial property and biofilm formation inhibition. The antibacterial performance against Staphylococci aureus was evaluated by assessing biofilm formation and adhesion using quantitative assays. The surface roughness of acid-treated Zn (Ra ~ 30 nm) was significantly higher than polished Zn (Ra ~ 3 nm) and corresponded with the marked inhibition of bacterial biofilm, and this is likely due to the increased surface contact area and Zn ion accumulation. Overall, surface modification due to nitric acid etching appears to be an effective technique that can produce unique morphological surface structures and enhance the antibacterial properties of biodegradable Zn-based materials, thus increasing the translation potential toward multiple biomedical applications.
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Affiliation(s)
- Enmao Xiang
- School of Dentistry, The University of Queensland, Brisbane 4006, Australia
- Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), School of Dentistry, The University of Queensland, Brisbane 4006, Australia
| | - Corey S Moran
- School of Dentistry, The University of Queensland, Brisbane 4006, Australia
- Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), School of Dentistry, The University of Queensland, Brisbane 4006, Australia
| | - Sašo Ivanovski
- School of Dentistry, The University of Queensland, Brisbane 4006, Australia
- Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), School of Dentistry, The University of Queensland, Brisbane 4006, Australia
| | - Abdalla Abdal-Hay
- School of Dentistry, The University of Queensland, Brisbane 4006, Australia
- Centre for Orofacial Regeneration, Reconstruction and Rehabilitation (COR3), School of Dentistry, The University of Queensland, Brisbane 4006, Australia
- Department of Engineering Materials and Mechanical Design, Faculty of Engineering, South Valley University, Qena 85325, Egypt
- Faculty of Industry and Energy Technology, Mechatronics Technology Program, New Cairo Technological University, Fifth Settlement, Cairo 11835, Egypt
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Jażdżewska M, Majkowska-Marzec B, Zieliński A, Ostrowski R, Frączek A, Karwowska G, Olive JM. Mechanical Properties and Wear Susceptibility Determined by Nanoindentation Technique of Ti13Nb13Zr Titanium Alloy after "Direct Laser Writing". MATERIALS (BASEL, SWITZERLAND) 2023; 16:4834. [PMID: 37445148 DOI: 10.3390/ma16134834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/26/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023]
Abstract
Laser treatment has often been applied to rebuild the surface layer of titanium and its alloys destined for long-term implants. Such treatment has always been associated with forming melted and re-solidified thin surface layers. The process parameters of such laser treatment can be different, including the patterning of a surface by so-called direct writing. In this research, pulse laser treatment was performed on the Ti13Nb13Zr alloy surface, with the distance between adjacent laser paths ranging between 20 and 50 µm. The obtained periodic structures were tested to examine the effects of the scan distance on the microstructure using SEM, the roughness and chemical and phase composition using EDS and XRD, and the mechanical properties using the nanoindentation technique. After direct laser writing, the thickness of the melted layers was between 547 and 123 µm, and the surface roughness varied between 1.74 and 0.69 µm. An increase in hardness was observed after laser treatment. The highest hardness, 5.44 GPa, was obtained for the sample modified with a laser beam spacing of 50 µm. The value of the distance has been shown to be important for several properties and related to a complex microstructure of the thin surface layer close to and far from the laser path.
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Affiliation(s)
- Magdalena Jażdżewska
- Department of Biomaterials Technology, Faculty of Mechanical Engineering and Ship Technology, Institute of Manufacturing and Materials Technology, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Beata Majkowska-Marzec
- Department of Biomaterials Technology, Faculty of Mechanical Engineering and Ship Technology, Institute of Manufacturing and Materials Technology, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Andrzej Zieliński
- Department of Biomaterials Technology, Faculty of Mechanical Engineering and Ship Technology, Institute of Manufacturing and Materials Technology, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Roman Ostrowski
- Institute of Optoelectronics, Military University of Technology, 00-908 Warszawa, Poland
| | - Aleksandra Frączek
- Department of Biomaterials Technology, Faculty of Mechanical Engineering and Ship Technology, Institute of Manufacturing and Materials Technology, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Gabriela Karwowska
- Department of Biomaterials Technology, Faculty of Mechanical Engineering and Ship Technology, Institute of Manufacturing and Materials Technology, Gdańsk University of Technology, 80-233 Gdańsk, Poland
| | - Jean-Marc Olive
- CNRS, Institute of Mechanics and Engineering, University of Bordeaux, 33400 Talence, France
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53
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Panayotov IV, Végh AG, Martin M, Vladimirov B, Larroque C, Gergely C, Cuisinier FJG, Estephan E. Improving dental epithelial junction on dental implants with bioengineered peptides. Front Bioeng Biotechnol 2023; 11:1165853. [PMID: 37409165 PMCID: PMC10318435 DOI: 10.3389/fbioe.2023.1165853] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 06/12/2023] [Indexed: 07/07/2023] Open
Abstract
Introduction: The functionalization of titanium (Ti) and titanium alloys (Ti6Al4V) implant surfaces via material-specific peptides influence host/biomaterial interaction. The impact of using peptides as molecular linkers between cells and implant material to improve keratinocyte adhesion is reported. Results: The metal binding peptides (MBP-1, MBP-2) SVSVGMKPSPRP and WDPPTLKRPVSP were selected via phage display and combined with laminin-5 or E-cadherin epithelial cell specific peptides (CSP-1, CSP-2) to engineer four metal-cell specific peptides (MCSPs). Single-cell force spectroscopy and cell adhesion experiments were performed to select the most promising candidate. In vivo tests using the dental implant for rats showed that the selected bi functional peptide not only enabled stable cell adhesion on the trans-gingival part of the dental implant but also arrested the unwanted apical migration of epithelial cells. Conclusion: The results demonstrated the outstanding performance of the bioengineered peptide in improving epithelial adhesion to Ti based implants and pointed towards promising new opportunities for applications in clinical practice.
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Affiliation(s)
- Ivan V. Panayotov
- LBN, University Montpellier, Montpellier, France
- CSERD, CHU Montpellier, Montpellier, France
| | - Attila G. Végh
- Biological Research Centre, Institute of Biophysics, Eötvös Lóránd Research Network (ELKH), Szeged, Hungary
| | - Marta Martin
- L2C, University Montpellier, CNRS, Montpellier, France
| | - Boyan Vladimirov
- Department of Maxillofacial Surgery, Medical University of Plovdiv, Plovdiv, Bulgaria
| | - Christian Larroque
- Department of Nephrology, CHU Montpellier, Hôpital Lapeyronie, IRMB, University of Montpellier, INSERM U1183, Montpellier, France
| | | | | | - Elias Estephan
- LBN, University Montpellier, Montpellier, France
- Neuroscience Research Center, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon
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Wu N, Gao H, Wang X, Pei X. Surface Modification of Titanium Implants by Metal Ions and Nanoparticles for Biomedical Application. ACS Biomater Sci Eng 2023; 9:2970-2990. [PMID: 37184344 DOI: 10.1021/acsbiomaterials.2c00722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Implant surface modification can improve osseointegration and reduce peri-implant inflammation. Implant surfaces are modified with metals because of their excellent mechanical properties and significant functions. Metal surface modification is divided into metal ions and nanoparticle surface modification. These two methods function by adding a finishing metal to the surface of the implant, and both play a role in promoting osteogenic, angiogenic, and antibacterial properties. Based on this, the nanostructural surface changes confer stronger antibacterial and cellular affinity to the implant surface. The current paper reviews the forms, mechanisms, and applications of nanoparticles and metal ion modifications to provide a foundation for the surface modification of implants.
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Affiliation(s)
- Nan Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Hongyu Gao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xu Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
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Saran R, Ginjupalli K, George SD, Chidangil S, V K U. LASER as a tool for surface modification of dental biomaterials: A review. Heliyon 2023; 9:e17457. [PMID: 37408894 PMCID: PMC10319194 DOI: 10.1016/j.heliyon.2023.e17457] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 06/09/2023] [Accepted: 06/19/2023] [Indexed: 07/07/2023] Open
Abstract
In recent years, the application of lasers for modifying the surface topography of dental biomaterials has received increased attention. This review paper aims to provide an overview of the current status on the utilization of lasers as a potential tool for surface modification of dental biomaterials such as implants, ceramics, and other materials used for restorative purposes. A literature search was done for articles related to the use of lasers for surface modification of dental biomaterials in English language published between October 2000 and March 2023 in Scopus, Pubmed and web of science, and relevant articles were reviewed. Lasers have been mainly used for surface modification of implant materials (71%), especially titanium and its alloys, to promote osseointegration. In recent years, laser texturing has also emerged as a promising technique to reduce bacterial adhesion on titanium implant surfaces. Currently, lasers are being widely used for surface modifications to improve osseointegration and reduce peri-implant inflammation of ceramic implants and to enhance the retention of ceramic restorations to the tooth. The studies considered in this review seem to suggest laser texturing to be more proficient than the conventional methods of surface modification. Lasers can alter the surface characteristics of dental biomaterials by creating innovative surface patterns without significantly affecting their bulk properties. With advances in laser technology and availability of newer wavelengths and modes, laser as a tool for surface modification of dental biomaterials is a promising field, with excellent potential for future research.
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Affiliation(s)
- Runki Saran
- Department of Dental Materials, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Kishore Ginjupalli
- Department of Dental Materials, Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Sajan D. George
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
- Centre for Applied Nanosciences, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Santhosh Chidangil
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Unnikrishnan V K
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
- Centre of Excellence for Biophotonics, Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal, 576104, India
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Kónya J, Hargitai H, Jaber H, Pinke P, Kovács TA. Effect of Surface Modifications on Surface Roughness of Ti6Al4V Alloy Manufactured by 3D Printing, Casting, and Wrought. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16113989. [PMID: 37297122 DOI: 10.3390/ma16113989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
This work aimed to comprehensively evaluate the influence of different surface modifications on the surface roughness of Ti6Al4V alloys produced by selective laser melting (SLM), casting and wrought. The Ti6Al4V surface was treated using blasting with Al2O3 (70-100 µm) and ZrO2 (50-130 µm) particles, acid etching with 0.017 mol/dm3 hydrofluoric acids (HF) for 120 s, and a combination of blasting and acid etching (SLA). It was found that the optimization of the surface roughness of Ti6Al4V parts produced by SLM differs significantly from those produced by casting or wrought processes. Experimental results showed that Ti6Al4V alloys produced by SLM and blasting with Al2O3 followed by HF etching had a higher surface roughness (Ra = 2.043 µm, Rz = 11.742 µm), whereas cast and wrought Ti6Al4V components had surface roughness values of (Ra = 1.466, Rz = 9.428 m) and (Ra = 0.940, Rz = 7.963 m), respectively. For Ti6Al4V parts blasted with ZrO2 and then etched by HF, the wrought Ti6Al4V parts exhibited higher surface roughness (Ra = 1.631 µm, Rz = 10.953 µm) than the SLM Ti6Al4V parts (Ra = 1.336 µm, Rz = 10.353 µm) and the cast Ti6Al4V parts (Ra = 1.075 µm, Rz = 8.904 µm).
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Affiliation(s)
- János Kónya
- Doctoral School on Materials Sciences and Technologies, Óbuda University, Bécsi út. 96/B., H-1034 Budapest, Hungary
- Dent-Art Technik Ltd., Csokonai u. 10., H-9024 Győr, Hungary
| | - Hajnalka Hargitai
- Department of Materials Science and Technology, Széchenyi István University, Egyetem tér 1., H-9026 Győr, Hungary
| | - Hassanen Jaber
- Bánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., H-1081 Budapest, Hungary
| | - Péter Pinke
- Bánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., H-1081 Budapest, Hungary
| | - Tünde Anna Kovács
- Bánki Donát Faculty of Mechanical and Safety Engineering, Óbuda University, Népszínház u. 8., H-1081 Budapest, Hungary
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Toledano-Osorio M, de Luna-Bertos E, Toledano M, Manzano-Moreno FJ, Costela-Ruiz V, Ruiz C, Gil J, Osorio R. Dexamethasone and doxycycline functionalized nanoparticles enhance osteogenic properties of titanium surfaces. Dent Mater 2023:S0109-5641(23)00114-8. [PMID: 37173196 DOI: 10.1016/j.dental.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
OBJECTIVES To evaluate the effect of doxycycline and dexamethasone doped nanoparticles covering titanium surfaces, on osteoblasts proliferation and differentiation. METHODS Doxycycline and dexamethasone doped polymeric nanoparticles were applied on titanium discs (Ti-DoxNPs and Ti-DexNPs). Undoped NPs and uncovered Ti discs were used as control. Human MG-63 osteoblast-like cells were cultured. Osteoblasts proliferation was tested by MTT assay. Alkaline phosphatase activity was analyzed. Differentiation gene expression was assessed by real-time quantitative polymerase chain reaction. Scanning Electron Microscopy was performed to assess osteoblasts morphology. Mean comparisons were conducted by ANOVA and Wilcoxon or Tukey tests (p < 0.05). RESULTS No differences in osteoblasts proliferation were found. Osteoblasts grown on Ti-DoxNPs significantly increased alkaline phosphatase activity. Doxycycline and dexamethasone nanoparticles produced an over-expression of the main osteogenic proliferative genes (TGF-β1, TGF-βR1 and TGF-βR2). The expression of Runx-2 was up-regulated. The osteogenic proteins (AP, OSX and OPG) were also overexpressed on osteoblasts cultured on Ti-DoxNPs and Ti-DexNPs. The OPG/RANKL ratio was the highest when DoxNPs were present (75-fold increase with respect to the control group). DexNPs also produced a significantly higher OPG/RANKL ratio with respect to the control (20 times higher). Osteoblasts grown on titanium discs were mainly flat and polygonal in shape, with inter-cellular connections. In contrast, osteoblasts cultured on Ti-DoxNPs or Ti-DexNPs were found to be spindle-shaped and had abundant secretions on their surfaces. SIGNIFICANCE DoxNPs and DexNPs were able to stimulate osteoblasts differentiation when applied on titanium surfaces, being considered potential inducers of osteogenic environment when performing regenerative procedures around titanium dental implants.
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Affiliation(s)
- Manuel Toledano-Osorio
- University of Granada, Faculty of Dentistry, Colegio Máximo de Cartuja s/n, Granada 18071, Spain; Medicina Clínica y Salud Pública PhD Programme, Spain
| | - Elvira de Luna-Bertos
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Spain; Instituto Investigación Biosanitaria, IBS. Granada, Granada, Spain.
| | - Manuel Toledano
- University of Granada, Faculty of Dentistry, Colegio Máximo de Cartuja s/n, Granada 18071, Spain; Instituto Investigación Biosanitaria, IBS. Granada, Granada, Spain
| | - Francisco Javier Manzano-Moreno
- Instituto Investigación Biosanitaria, IBS. Granada, Granada, Spain; Biomedical Group (BIO277). Department of Stomatology, School of Dentistry, University of Granada, Spain
| | - Victor Costela-Ruiz
- Instituto Investigación Biosanitaria, IBS. Granada, Granada, Spain; Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences, Campus de Ceuta. University of Granada, Spain
| | - Concepción Ruiz
- Biomedical Group (BIO277). Department of Nursing, Faculty of Health Sciences. University of Granada, Spain; Instituto Investigación Biosanitaria, IBS. Granada, Granada, Spain; Institute of Neuroscience, University of Granada, Centro de Investigación Biomédica (CIBM). Parque de Tecnológico de la Salud (PTS), Granada, Spain
| | - Javier Gil
- International University of Cataluña (UIC), Barcelona, Spain
| | - Raquel Osorio
- University of Granada, Faculty of Dentistry, Colegio Máximo de Cartuja s/n, Granada 18071, Spain; Instituto Investigación Biosanitaria, IBS. Granada, Granada, Spain
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Bhattacharjee A, Goodall E, Pereira BL, Soares P, Popat KC. Zinc (Zn) Doping by Hydrothermal and Alkaline Heat-Treatment Methods on Titania Nanotube Arrays for Enhanced Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101606. [PMID: 37242024 DOI: 10.3390/nano13101606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023]
Abstract
Titanium (Ti) is a popular biomaterial for orthopedic implant applications due to its superior mechanical properties such as corrosion resistance and low modulus of elasticity. However, around 10% of these implants fail annually due to bacterial infection and poor osseointegration, resulting in severe pain and suffering for the patients. To improve their performance, nanoscale surface modification approaches and doping of trace elements on the surfaces can be utilized which may help in improving cell adhesion for better osseointegration while reducing bacterial infection. In this work, at first, titania (TiO2) nanotube arrays (NT) were fabricated on commercially available pure Ti surfaces via anodization. Then zinc (Zn) doping was conducted following two distinct methods: hydrothermal and alkaline heat treatment. Scanning electron microscopic (SEM) images of the prepared surfaces revealed unique surface morphologies, while energy dispersive X-ray spectroscopy (EDS) revealed Zn distribution on the surfaces. Contact angle measurements indicated that NT surfaces were superhydrophilic. X-ray photoelectron spectroscopy (XPS) provided the relative amount of Zn on the surfaces and indicated that hydrothermally treated surfaces had more Zn compared to the alkaline heat-treated surfaces. X-ray crystallography (XRD) and nanoindentation techniques provided the crystal structure and mechanical properties of the surfaces. While testing with adipose-derived stem cells (ADSC), the surfaces showed no apparent cytotoxicity to the cells. Finally, bacteria adhesion and morphology were evaluated on the surfaces after 6 h and 24 h of incubation. From the results, it was confirmed that NT surfaces doped with Zn drastically reduced bacteria adhesion compared to the Ti control. Zn-doped NT surfaces thus offer a potential platform for orthopedic implant application.
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Affiliation(s)
- Abhishek Bhattacharjee
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO 80523, USA
| | - Emma Goodall
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Bruno Leandro Pereira
- Department of Mechanical Engineering, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, PR, Brazil
| | - Paulo Soares
- Department of Mechanical Engineering, Pontifícia Universidade Católica do Paraná, Curitiba 80215-901, PR, Brazil
| | - Ketul C Popat
- School of Advanced Materials Discovery, Colorado State University, Fort Collins, CO 80523, USA
- School of Biomedical Engineering, Colorado State University, Fort Collins, CO 80523, USA
- Department of Mechanical Engineering, Colorado State University, Fort Collins, CO 80523, USA
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Li W, Xu F, Dai F, Deng T, Ai Y, Xu Z, He C, Ai F, Song L. Hydrophilic surface-modified 3D printed flexible scaffolds with high ceramic particle concentrations for immunopolarization-regulation and bone regeneration. Biomater Sci 2023; 11:3976-3997. [PMID: 37115001 DOI: 10.1039/d3bm00362k] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Bioceramic scaffolds used in bone tissue engineering suffer from a low concentration of ceramic particles (<50 wt%), because the high concentration of ceramic particles increases the brittleness of the composite. 3D printed flexible PCL/HA scaffolds with high ceramic particle concentrations (84 wt%) were successfully fabricated in this study. However, the hydrophobicity of PCL weakens the composite scaffold hydrophilicity, which may limit the osteogenic ability to some extent. Thus, as a less time-consuming, less labour intensive, and more cost-effective treatment method, alkali treatment (AT) was employed to modify the surface hydrophilicity of the PCL/HA scaffold, and its regulation of immune responses and bone regeneration were investigated in vivo and in vitro. Initially, several concentrations of NaOH (0.5, 1, 1.5, 2, 2.5, and 5 mol L-1) were employed in tests to determine the appropriate concentration for AT. Based on the comprehensive consideration of the results of mechanical experiments and hydrophilicity, 2 mol L-1 and 2.5 mol L-1 of NaOH were selected for further investigation in this study. The PCL/HA-AT-2 scaffold dramatically reduced foreign body reactions as compared to the PCL/HA and PCL/HA-AT-2.5 scaffolds, promoted macrophage polarization towards the M2 phenotype and enhanced new bone formation. The Wnt/β-catenin pathway might participate in the signal transduction underlying hydrophilic surface-modified 3D printed scaffold-regulated osteogenesis, according to the results of immunohistochemical staining. In conclusion, hydrophilic surface-modified 3D printed flexible scaffolds with high ceramic particle concentrations can regulate the immune reactions and macrophage polarization to promote bone regeneration, and the PCL/HA-AT-2 scaffold is a potential candidate for bone tissue repair.
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Affiliation(s)
- Wenfeng Li
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Fancheng Xu
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Fang Dai
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Tian Deng
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Yufeng Ai
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Zhiyong Xu
- School of Pharmacy, Nanchang University, Nanchang, China
| | - Chenjiang He
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
| | - Fanrong Ai
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
- School of Advanced Manufacturing, Nanchang University, Nanchang, China.
| | - Li Song
- The Center of Stomatology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
- The Institute of Periodontal Disease, Nanchang University, Nanchang, China.
- JXHC Key Laboratory of Periodontology (The Second Affiliated Hospital of Nanchang University), Nanchang, China
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Li K, Liu S, Li J, Yi D, Shao D, Hu T, Zheng X. Manganese supplementation of orthopedic implants: a new strategy for enhancing integrin-mediated cellular responses. Biomater Sci 2023; 11:3893-3905. [PMID: 37083965 DOI: 10.1039/d2bm02165j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Integrin-mediated osteoblast adhesion to adsorbed extracellular ligands on orthopedic implants is crucial for the subsequent osteoblast behaviors and ultimate osseointegration. Considerable research efforts have focused on the development of implant surfaces that promote the adsorption of extracellular ligands, but ignored the fact that integrin binding to ligands requires divalent cations (such as Mn2+). Here, three kinds of Mn-doped nanowire-structured TiO2 coatings with 1.9, 3.9, and 8.8 wt% dopant contents (Mn1-, Mn2-, and Mn3-TiO2) were synthesized on Ti implants to enhance integrin-mediated osteoblastic responses. The Mg-doped and undoped TiO2 nanocoatings served as the control. Mn element was not only successfully incorporated into the TiO2 matrix, but also formed an oxygen-deficient Mn oxide on the nanowire surface. Although the adsorbed fibronectin (Fn) amount on Mn-doped nanocoatings and its unfolded status were slightly attenuated with increasing Mn amount, the interaction between the coating extract and Fn demonstrated a Mn2+-induced unfolding of Fn with the exposure of the RGD motif. Compared to the Mn1-, Mn2- and Mg-doped TiO2 nanocoatings, the Mn3-TiO2 nanocoating significantly upregulated the expression of integrin α5β1 probably through increasing the ligand-binding affinity of the integrin rather than integrin binding sites in Fn. Consistent with the activation trend of integrin α5β1, the Mn3-TiO2 nanocoating enhanced cell adhesion with the long stretched structure of actin fibers and extensive formation of vinculin focal adhesion spots and upregulated the levels of alkaline phosphatase and osteocalcin activities. Therefore, Mn supplementation of orthopedic implants may be a promising way to improve osteogenesis at the implant surface.
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Affiliation(s)
- Kai Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Shiwei Liu
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Jieping Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Deliang Yi
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
| | - Dandan Shao
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
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Souza JCM, Raffaele-Esposito A, Carvalho O, Silva F, Özcan M, Henriques B. Surface modification of zirconia or lithium disilicate-reinforced glass ceramic by laser texturing to increase the adhesion of prosthetic surfaces to resin cements: an integrative review. Clin Oral Investig 2023:10.1007/s00784-023-05016-z. [PMID: 37069409 DOI: 10.1007/s00784-023-05016-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 04/02/2023] [Indexed: 04/19/2023]
Abstract
OBJECTIVE The purpose of this study was to perform an integrative review on laser texturing the inner surface of lithium disilicate-reinforced glass ceramic or zirconia to increase their bond strength to resin-matrix cements. MATERIALS AND METHOD A bibliographic review was performed on PubMed using the following search terms: "zirconia" OR "lithium disilicate" AND "laser" AND "surface" OR "roughness" AND "bond strength" AND "luting agent" OR "resin cement." Studies published in English language until March 15, 2023, were selected regarding the purpose of this study. RESULTS A total of fifty-six studies were identified althoug thirteen studies were selected. The findings revealed that zirconia surfaces were significantly modified after laser irradiation resulting in macro-scale aligned retentive regions with depth values ranging from 50 to 120 µm. Average roughness values of laser-textured zirconia by Er,Cr:YSGG laser (~ 0.83 µm) were quite similar when compared to grit-blasted zirconia surfaces (~ 0.9 µm) although roughness increased up to 2.4 µm depending on the laser type and parameters. Lithium disilicate-reinforced glass ceramics textured with Er:YAG revealed an average roughness of around 3.5 µm while surfaces textured using Nd:YAG laser revealed an average roughness of 2.69 µm; that was quite similar to the roughness values recorded for etched surfaces (2.64 µm). The shear bond strength (SBS) values of zirconia surfaces textured on Nd:YVO4 laser irradiation were slightly higher (~ 33.5 MPa) than those recorded for grit-blasted zirconia surfaces (28 MPa). Laser-textured zirconia surfaces on CO2 laser revealed higher SBS values (18.1 ±0.8 MPa) than those (9.1 ± 0.56 MPa) recorded for untreated zirconia surfaces. On lithium disilicate-reinforced glass ceramics, higher SBS values to resin-matrix cements were recorded for specimens textured with a combination of fractional CO2 laser irradiation and HF acid etching (~ 22-24 MPa) when compared with grit-blasted specimens (12.2 MPa). Another study revealed SBS values at around 27.5 MPa for Er:YAG-textured lithium disilicate-reinforced glass ceramics to resin-matrix cements. CONCLUSIONS The laser irradiation at high power increases the roughness of the inner surface of lithium disilicate-reinforced glass ceramic or zirconia leading to an enhanced bond strength to resin-matrix cements. Thus, the laser type and irradiation parameters can be adjusted to enhance the macro- and micro-scale retention of zirconia and glass ceramic surfaces to resin-matrix cements. CLINICAL RELEVANCE Alternative methods for surface modification of lithium disilicate-reinforced glass ceramic and zirconia surfaces have been assessed to provide proper morphological aspects for enhanced adhesion to resin-matrix cements. An increase in the bond strength of glass ceramics or zirconia to resin-matrix cements can improve the long-term performance of cemented prosthetic structures in the oral cavity.
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Affiliation(s)
- Júlio C M Souza
- Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal.
- LABBELS Associate Laboratory, University of Minho, 4710-057, Guimarães, Portugal.
- University Institute of Health Sciences (IUCS), CESPU, Gandra, PRD, 4585-116, Portugal.
| | | | - Oscar Carvalho
- Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
- LABBELS Associate Laboratory, University of Minho, 4710-057, Guimarães, Portugal
| | - Filipe Silva
- Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
- LABBELS Associate Laboratory, University of Minho, 4710-057, Guimarães, Portugal
| | - Mutlu Özcan
- Division of Dental Biomaterials, Center of Dental Medicine, Clinic of Reconstructive Dentistry, University of Zurich, 8032, Zurich, Switzerland.
| | - Bruno Henriques
- Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058, Guimarães, Portugal
- Ceramic and Composite Materials Research Group (CERMAT), Department of Mechanical Engineering (EMC), Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
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Zhu B, Jia E, Zhang Q, Zhang Y, Zhou H, Tan Y, Deng Z. Titanium Surface-Grafted Zwitterionic Polymers with an Anti-Polyelectrolyte Effect Enhances Osteogenesis. Colloids Surf B Biointerfaces 2023; 226:113293. [PMID: 37028232 DOI: 10.1016/j.colsurfb.2023.113293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 03/29/2023] [Accepted: 04/02/2023] [Indexed: 04/05/2023]
Abstract
Zwitterionic polymers have attracted considerable attention because of their anti-adsorption and unique anti-polyelectrolyte effects and was widely used in surface modification. In this study, zwitterionic copolymers (poly (sulfobetaine methacrylate-co-butyl acrylate) (pSB) coating on the surface of a hydroxylated titanium sheet using surface-initiated atom transfer radical polymerization (SI-ATRP) was successfully constructed. X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FT-IR) and Water contact angle (WCA) analysis proved the successful preparation of the coating. The swelling effect caused by the anti-polyelectrolyte effect was reflected in the simulation experiment in vitro, and this coating can promote the proliferation and osteogenesis of MC3T3-E1. Therefore, this study provides a new strategy for designing multifunctional biomaterials for implant surface modifications.
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Affiliation(s)
- Bingbing Zhu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Erna Jia
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, PR China.
| | - Qimeng Zhang
- School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun 113001, PR China
| | - Yanyan Zhang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325000, PR China
| | - Hua Zhou
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, PR China; Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, PR China
| | - Ying Tan
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, PR China; Zhejiang Engineering Research Center for Tissue Repair Materials, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, PR China.
| | - Zhennan Deng
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325000, PR China.
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Bian Y, Hu T, Lv Z, Xu Y, Wang Y, Wang H, Zhu W, Feng B, Liang R, Tan C, Weng X. Bone tissue engineering for treating osteonecrosis of the femoral head. EXPLORATION (BEIJING, CHINA) 2023; 3:20210105. [PMID: 37324030 PMCID: PMC10190954 DOI: 10.1002/exp.20210105] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 05/12/2022] [Indexed: 06/16/2023]
Abstract
Osteonecrosis of the femoral head (ONFH) is a devastating and complicated disease with an unclear etiology. Femoral head-preserving surgeries have been devoted to delaying and hindering the collapse of the femoral head since their introduction in the last century. However, the isolated femoral head-preserving surgeries cannot prevent the natural progression of ONFH, and the combination of autogenous or allogeneic bone grafting often leads to many undesired complications. To tackle this dilemma, bone tissue engineering has been widely developed to compensate for the deficiencies of these surgeries. During the last decades, great progress has been made in ingenious bone tissue engineering for ONFH treatment. Herein, we comprehensively summarize the state-of-the-art progress made in bone tissue engineering for ONFH treatment. The definition, classification, etiology, diagnosis, and current treatments of ONFH are first described. Then, the recent progress in the development of various bone-repairing biomaterials, including bioceramics, natural polymers, synthetic polymers, and metals, for treating ONFH is presented. Thereafter, regenerative therapies for ONFH treatment are also discussed. Finally, we give some personal insights on the current challenges of these therapeutic strategies in the clinic and the future development of bone tissue engineering for ONFH treatment.
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Affiliation(s)
- Yixin Bian
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Tingting Hu
- State Key Laboratory of Chemical Resource EngineeringBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijingChina
| | - Zehui Lv
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Yiming Xu
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Yingjie Wang
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Han Wang
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Wei Zhu
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Bin Feng
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
| | - Ruizheng Liang
- State Key Laboratory of Chemical Resource EngineeringBeijing Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijingChina
| | - Chaoliang Tan
- Department of ChemistryCity University of Hong KongKowloonHong Kong SARChina
| | - Xisheng Weng
- Department of Orthopedic SurgeryState Key Laboratory of Complex Severe and Rare DiseasesPeking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijingChina
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Osteogenic and anti-inflammatory effects of SLA titanium substrates doped with chitosan-stabilized selenium nanoparticles via a covalent coupling strategy. Colloids Surf B Biointerfaces 2023; 224:113217. [PMID: 36868181 DOI: 10.1016/j.colsurfb.2023.113217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 03/03/2023]
Abstract
Osseointegration is a prerequisite for the function of dental implants, and macrophage-dominated immune responses triggered by implantation determine the outcome of ultimate bone healing mediated by osteogenic cells. The present study aimed to develop a modified titanium (Ti) surface by covalently immobilizing chitosan-stabilized selenium nanoparticles (CS-SeNPs) to sandblasted, large grit, and acid-etched (SLA) Ti substrates and further explore its surface characteristics as well as osteogenic and anti-inflammatory activities in vitro. CS-SeNPs were successfully prepared by chemical synthesis and characterized their morphology, elemental composition, particle size, and Zeta potential. Subsequently, three different concentrations of CS-SeNPs were loaded to SLA Ti substrates (Ti-Se1, Ti-Se5, and Ti-Se10) using a covalent coupling strategy, and the SLA Ti surface (Ti-SLA) was used as a control. Scanning electron microscopy images revealed different amounts of CS-SeNPs, and the roughness and wettability of Ti surfaces were less susceptible to Ti substrate pretreatment and CS-SeNP immobilization. Besides, X-ray photoelectron spectroscopy analysis showed that CS-SeNPs were successfully anchored to Ti surfaces. The results of in vitro study showed that the four as-prepared Ti surfaces exhibited good biocompatibility, with Ti-Se1 and Ti-Se5 groups showing enhanced adhesion and differentiation of MC3T3-E1 cells compared with the Ti-SLA group. In addition, Ti-Se1, Ti-Se5, and Ti-Se10 surfaces modulated the secretion of pro-/anti-inflammatory cytokines by inhibiting the nuclear factor kappa B pathway in Raw 264.7 cells. In conclusion, doping SLA Ti substrates with a modest amount of CS-SeNPs (1-5 mM) may be a promising strategy to improve the osteogenic and anti-inflammatory activities of Ti implants.
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Chai Q, Xu H, Xu X, Li Z, Bao W, Man Z, Li W. Mussel-inspired alkaline phosphatase-specific coating on orthopedic implants for spatiotemporal modulating local osteoimmune microenvironment to facilitate osseointegration. Colloids Surf B Biointerfaces 2023; 225:113284. [PMID: 37003248 DOI: 10.1016/j.colsurfb.2023.113284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/17/2023] [Accepted: 03/28/2023] [Indexed: 04/03/2023]
Abstract
Inadequate initial osseointegration and consequent prosthesis loosening are the most severe complications after artificial arthroplasty. Proper immune responses are crucial for the successful implantation of artificial prostheses. Macrophages are central in osteoimmunomodulation because they exert distinct functions with highly plasticity. Herein, we developed an alkaline phosphatase (ALP) sensitive mussel-inspired coating on orthopedic implants for promoting osseointegration. First, the resveratrol-alendronate complexes were deposited on titanium implant surface through mussel-inspired interfacial interactions. Upon prosthesis implantation, macrophages first polarized towards M1 type to initiate inflammatory responses and bone regeneration. As osteogenesis progresses, increasing amounts of ALP secreted by osteoblasts was cleaved the resveratrol-alendronate complexes. Then, the released resveratrol further promoted osteogenic differentiation of BMSCs and induced locoregional macrophages M2 polarization. Our results demonstrated that the bioinspired osteoimmunomodulation coating remarkably facilitated the prosthesis-bone integration by spatiotemporally modulating macrophages switching from M1 to M2 polarization in response to a real-time healing signal during osteogenesis. In summary, the mussel-inspired osteoimmunomodulation coating technology may provide a new approach for promoting osseointegration after artificial arthroplasty.
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Affiliation(s)
- Qihao Chai
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province 250021, PR China; Department of Orthopedic Surgery, the 903rd Hospital of PLA, Hangzhou, Zhejiang Province 310009, PR China
| | - Hailun Xu
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province 250021, PR China
| | - Xianxing Xu
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province 250021, PR China
| | - Ziyang Li
- Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong Province 250021, PR China
| | - Wenfei Bao
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province 250021, PR China
| | - Zhentao Man
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province 250021, PR China; Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong Province 250021, PR China; Endocrine and Metabolic Diseases Hospital of Shandong First Medical University, Shandong Institute of Endocrine and Metabolic Diseases, Jinan, Shandong Province 250062, PR China.
| | - Wei Li
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province 250021, PR China; Department of Joint Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong Province 250021, PR China.
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Sun H, Meng S, Chen J, Wan Q. Effects of Hyperlipidemia on Osseointegration of Dental Implants and Its Strategies. J Funct Biomater 2023; 14:jfb14040194. [PMID: 37103284 PMCID: PMC10145040 DOI: 10.3390/jfb14040194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
Hyperlipidemia refers to the abnormal increase in plasma lipid level exceeding the normal range. At present, a large number of patients require dental implantation. However, hyperlipidemia affects bone metabolism, promotes bone loss, and inhibits the osseointegration of dental implants through the mutual regulation of adipocytes, osteoblasts, and osteoclasts. This review summarized the effects of hyperlipidemia on dental implants and addressed the potential strategies of dental implants to promote osseointegration in a hyperlipidemic environment and to improve the success rate of dental implants in patients with hyperlipidemia. We summarized topical drug delivery methods to solve the interference of hyperlipidemia in osseointegration, which were local drug injection, implant surface modification and bone-grafting material modification. Statins are the most effective drugs in the treatment of hyperlipidemia, and they also encourage bone formation. Statins have been used in these three methods and have been found to be positive in promoting osseointegration. Directly coating simvastatin on the rough surface of the implant can effectively promote osseointegration of the implant in a hyperlipidemic environment. However, the delivery method of this drug is not efficient. Recently, a variety of efficient methods of simvastatin delivery, such as hydrogels and nanoparticles, have been developed to boost bone formation, but few of them were applied to dental implants. Applicating these drug delivery systems using the three aforementioned ways, according to the mechanical and biological properties of materials, could be promising ways to promote osseointegration under hyperlipidemic conditions. However, more research is needed to confirm.
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Xiao L, Sun Y, Liao L, Su X. Response of mesenchymal stem cells to surface topography of scaffolds and the underlying mechanisms. J Mater Chem B 2023; 11:2550-2567. [PMID: 36852826 DOI: 10.1039/d2tb01875f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Mesenchymal stem/stromal cells (MSCs) serve as essential components of regenerative medicine. Their destiny is influenced by the interaction of the cells with the external environment. In addition to the biochemical cues in a microenvironment, physical cues of the topography of the surrounding materials such as the extracellular matrix emerge as a crucial regulator of stem cell destiny and function. With recent advances in technologies of materials production and surface modification, surfaces with micro/nanotopographical characteristics can be fabricated to mimic the micro/nanoscale mechanical stimuli of the extracellular matrix environment and regulate the biological behavior of cells. Understanding the interaction of cells with the topography of a surface is conducive to the control of stem cell fate for application in regenerative medicine. However, the mechanisms by which topography affects the biological behavior of stem cells have not been fully elucidated. This review will present the effects of surface topography at the nano/micrometer scale on stem cell adhesion, morphology, proliferation, migration, and differentiation. It also focuses on discussing current theories about the sensing and recognition of surface topology cues, the transduction of the extracellular cues into plasma, and the final activation of related signaling pathways and downstream gene expression in MSCs. These insights will provide a theoretical basis for the future design of biomaterial scaffolds for application in regenerative medicine and tissue engineering.
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Affiliation(s)
- Li Xiao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Pediatrics & Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
| | - Yanping Sun
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Pediatrics & Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
| | - Li Liao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Pediatrics & Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
| | - Xiaoxia Su
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Department of Pediatrics & Engineering Research Center of Oral Translational Medicine, Ministry of Education, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
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Zuardi LR, Silva CLA, Rego EM, Carneiro GV, Spriano S, Nanci A, de Oliveira PT. Influence of a Physiologically Formed Blood Clot on Pre-Osteoblastic Cells Grown on a BMP-7-Coated Nanoporous Titanium Surface. Biomimetics (Basel) 2023; 8:biomimetics8010123. [PMID: 36975353 PMCID: PMC10046195 DOI: 10.3390/biomimetics8010123] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023] Open
Abstract
Titanium (Ti) nanotopography modulates the osteogenic response to exogenous bone morphogenetic protein 7 (BMP-7) in vitro, supporting enhanced alkaline phosphatase mRNA expression and activity, as well as higher osteopontin (OPN) mRNA and protein levels. As the biological effects of OPN protein are modulated by its proteolytic cleavage by serum proteases, this in vitro study evaluated the effects on osteogenic cells in the presence of a physiological blood clot previously formed on a BMP-7-coated nanostructured Ti surface obtained by chemical etching (Nano-Ti). Pre-osteoblastic MC3T3-E1 cells were cultured during 5 days on recombinant mouse (rm) BMP-7-coated Nano-Ti after it was implanted in adult female C57BI/6 mouse dorsal dermal tissue for 18 h. Nano-Ti without blood clot or with blood clot at time 0 were used as the controls. The presence of blood clots tended to inhibit the expression of key osteoblast markers, except for Opn, and rmBMP-7 functionalization resulted in a tendency towards relatively greater osteoblastic differentiation, which was corroborated by runt-related transcription factor 2 (RUNX2) amounts. Undetectable levels of OPN and phosphorylated suppressor of mothers against decapentaplegic (SMAD) 1/5/9 were noted in these groups, and the cleaved form of OPN was only detected in the blood clot immediately prior to cell plating. In conclusion, the strategy to mimic in vitro the initial interfacial in vivo events by forming a blood clot on a Ti nanoporous surface resulted in the inhibition of pre-osteoblastic differentiation, which was minimally reverted with an rmBMP-7 coating.
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Affiliation(s)
- Leonardo Raphael Zuardi
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Cleide Lúcia Araújo Silva
- Haematology Division, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14051-060, SP, Brazil
| | - Eduardo Magalhães Rego
- Haematology Division, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14051-060, SP, Brazil
| | - Giovana Vacilotto Carneiro
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
| | - Silvia Spriano
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
| | - Antonio Nanci
- Faculté de médecine dentaire, Université de Montréal, Montreal, QC H3T 1J4, Canada
| | - Paulo Tambasco de Oliveira
- Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto 14040-904, SP, Brazil
- Correspondence: ; Tel.: +55-16-99623-3663
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Deng J, Cohen DJ, Berger MB, Sabalewski EL, McClure MJ, Boyan BD, Schwartz Z. Osseointegration of Titanium Implants in a Botox-Induced Muscle Paralysis Rat Model Is Sensitive to Surface Topography and Semaphorin 3A Treatment. Biomimetics (Basel) 2023; 8:biomimetics8010093. [PMID: 36975323 PMCID: PMC10046785 DOI: 10.3390/biomimetics8010093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/06/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Reduced skeletal loading associated with many conditions, such as neuromuscular injuries, can lead to bone fragility and may threaten the success of implant therapy. Our group has developed a botulinum toxin A (botox) injection model to imitate disease-reduced skeletal loading and reported that botox dramatically impaired the bone formation and osseointegration of titanium implants. Semaphorin 3A (sema3A) is an osteoprotective factor that increases bone formation and inhibits bone resorption, indicating its potential therapeutic role in improving osseointegration in vivo. We first evaluated the sema3A effect on whole bone morphology following botox injections by delivering sema3A via injection. We then evaluated the sema3A effect on the osseointegration of titanium implants with two different surface topographies by delivering sema3A to cortical bone defect sites prepared for implant insertion and above the implants after insertion using a copper-free click hydrogel that polymerizes rapidly in situ. Implants had hydrophobic smooth surfaces (PT) or multiscale biomimetic micro/nano topography (SLAnano). Sema3A rescued the botox-impaired bone formation. Furthermore, biomimetic Ti implants improved the bone-to-implant contact (BIC) and mechanical properties of the integrated bone in the botox-treated rats, which sema3A enhanced. This study demonstrated the value of biomimetic approaches combining multiscale topography and biologics in improving the clinical outcomes of implant therapy.
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Affiliation(s)
- Jingyao Deng
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
- VCU DaVinci Center for Innovation, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - D. Joshua Cohen
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Michael B. Berger
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Eleanor L. Sabalewski
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Michael J. McClure
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Barbara D. Boyan
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
- Correspondence: ; Fax: +1-804-828-9866
| | - Zvi Schwartz
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
- Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
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70
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Wang Y, Tang S, Ding N, Zhang Z. Biological properties of hydroxyapatite coatings on titanium dioxide nanotube surfaces using negative pressure method. J Biomed Mater Res B Appl Biomater 2023; 111:1365-1373. [PMID: 36826780 DOI: 10.1002/jbm.b.35240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/25/2023]
Abstract
Titanium (Ti) exhibits superior biocompatibility and mechanical properties but is bioinert, while hydroxyapatite (HA) possesses excellent osteogenesis and is widely used for the modification of Ti surface coatings. However, the synthesis of homogeneous and stable HA on metallic materials is still a major challenge. In this study, porous titanium dioxide nanotube arrays were prepared on Ti surface by anodic oxidation, loaded with calcium and phosphorus precursors by negative pressure immersion, and HA coating was formed by in situ crystallization of calcium and phosphorus on the surface by hydrothermal heating. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and bonding strength were conducted to confirm the surface characteristics of each group. The cell proliferation, mineralization degree, and alkaline phosphatase (ALP) activity of MC3T3-E1 cells on samples were calculated and compared in vitro experiments. Cylindrical samples were implanted into rat femurs to evaluate biocompatibility and osteogenesis in vivo. The results showed that HA crystals successfully synthesized in TiO2 nanotubes, enhancing the bonding strength of HA coating and Ti substrate under negative pressure. Moreover, HA coating on Ti substrate remarkably enhanced cell proliferation and osteogenic differentiation activity in vitro, and improved new bone formation as well as osseointegration in vivo.
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Affiliation(s)
- Yan Wang
- Beijing Institute of Dental Research, School of Stomatology, Capital Medical University, Beijing, China
| | - Shuang Tang
- Beijing Institute of Dental Research, School of Stomatology, Capital Medical University, Beijing, China
| | - Ning Ding
- Beijing Institute of Dental Research, School of Stomatology, Capital Medical University, Beijing, China
| | - Zutai Zhang
- Beijing Institute of Dental Research, School of Stomatology, Capital Medical University, Beijing, China
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Toirac B, Aguilera-Correa JJ, Mediero A, Esteban J, Jiménez-Morales A. The Antimicrobial Activity of Micron-Thin Sol-Gel Films Loaded with Linezolid and Cefoxitin for Local Prevention of Orthopedic Prosthesis-Related Infections. Gels 2023; 9:gels9030176. [PMID: 36975625 PMCID: PMC10048042 DOI: 10.3390/gels9030176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/13/2023] [Accepted: 02/21/2023] [Indexed: 03/29/2023] Open
Abstract
Orthopedic prosthesis-related infections (OPRI) are an essential health concern. OPRI prevention is a priority and a preferred option over dealing with poor prognosis and high-cost treatments. Micron-thin sol-gel films have been noted for a continuous and effective local delivery system. This study aimed to perform a comprehensive in vitro evaluation of a novel hybrid organic-inorganic sol-gel coating developed from a mixture of organopolysiloxanes and organophosphite and loaded with different concentrations of linezolid and/or cefoxitin. The kinetics of degradation and antibiotics release from the coatings were measured. The inhibition of biofilm formation of the coatings against Staphylococcus aureus, S. epidermidis, and Escherichia coli strains was studied, as well as the cell viability and proliferation of MC3T3-E1 osteoblasts. The microbiological assays demonstrated that sol-gel coatings inhibited the biofilm formation of the evaluated Staphylococcus species; however, no inhibition of the E. coli strain was achieved. A synergistic effect of the coating loaded with both antibiotics was observed against S. aureus. The cell studies showed that the sol-gels did not compromise cell viability and proliferation. In conclusion, these coatings represent an innovative therapeutic strategy with potential clinical use to prevent staphylococcal OPRI.
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Affiliation(s)
- Beatriz Toirac
- Materials Science and Engineering and Chemical Engineering Department, Carlos III University of Madrid, 28911 Madrid, Spain
| | - John Jairo Aguilera-Correa
- Clinical Microbiology Department, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain
- CIBERINFEC-Consorcio Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Infecciosas, 28029 Madrid, Spain
| | - Aranzazu Mediero
- Bone and Joint Unit, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain
| | - Jaime Esteban
- Clinical Microbiology Department, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain
- CIBERINFEC-Consorcio Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Infecciosas, 28029 Madrid, Spain
| | - Antonia Jiménez-Morales
- Materials Science and Engineering and Chemical Engineering Department, Carlos III University of Madrid, 28911 Madrid, Spain
- CIBERINFEC-Consorcio Centro de Investigación Biomédica en Red (CIBER) de Enfermedades Infecciosas, 28029 Madrid, Spain
- Alvaro Alonso Barba Technological Institute of Chemistry and Materials, Carlos III University of Madrid, 28911 Madrid, Spain
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72
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Siegler S, Taghvaei M, Zegarski R, Palmese G, Mathew R, Schayes J, Schaer T, Najafi A. A porous swelling copolymeric material for improved implant fixation to bone. J Biomed Mater Res B Appl Biomater 2023; 111:1342-1350. [PMID: 36815442 DOI: 10.1002/jbm.b.35238] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/10/2023] [Indexed: 02/24/2023]
Abstract
Most metallic commercial bone anchors, such as screws and suture anchors achieve their fixation to bone through shear of the bone located between the threads. They have several deficiencies, potentially leading to failure, which are particularly evident in low-density bone. These include stress-shielding resulting from mechanical properties mismatch; lack of mechanically induced remodeling and osteointegration; and when the pullout force on the anchor, during functional activities, exceeds their pullout strength, catastrophic failure occurs leaving behind large bone defects that may be hard to repair. To overcome these deficiencies, we introduced in this study a porous swelling co-polymeric material and studied its swelling and compressive mechanical characteristics as bone anchor under different configurations. Porosity was achieved by adding a non-dissolvable agent (NaCl) during the process of polymerization, which was later dissolved in water, leaving behind a porous structure with adequate porosity for osteointegration. Three different groups of cylindrical samples of the swelling co-polymer were investigated. Solid, fully porous, and partially porous with a solid core and a porous outer layer. The results of the swelling and simple compression study show that the partially porous swelling co-polymer maintains excellent mechanical properties matching those of cancellous bone, quick swelling response, and an adequate porous outer layer for mechanically induced osteointegration. These suggest that this material may present an effective alternative to conventional bone anchors particularly in low-density bone.
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Affiliation(s)
- Sorin Siegler
- Department of Mechanical Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Moein Taghvaei
- Department of Mechanical Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Ryan Zegarski
- Department of Mechanical Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Giuseppe Palmese
- College of Engineering, Rowan University, Glassboro, New Jersey, USA
| | - Rena Mathew
- Department of Mechanical Engineering, Drexel University, Philadelphia, Pennsylvania, USA
| | - Julia Schayes
- School of Veterniary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Thomas Schaer
- School of Veterniary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Ahmad Najafi
- Department of Mechanical Engineering, Drexel University, Philadelphia, Pennsylvania, USA
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73
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Biomedical applications of solid-binding peptides and proteins. Mater Today Bio 2023; 19:100580. [PMID: 36846310 PMCID: PMC9950531 DOI: 10.1016/j.mtbio.2023.100580] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Over the past decades, solid-binding peptides (SBPs) have found multiple applications in materials science. In non-covalent surface modification strategies, solid-binding peptides are a simple and versatile tool for the immobilization of biomolecules on a vast variety of solid surfaces. Especially in physiological environments, SBPs can increase the biocompatibility of hybrid materials and offer tunable properties for the display of biomolecules with minimal impact on their functionality. All these features make SBPs attractive for the manufacturing of bioinspired materials in diagnostic and therapeutic applications. In particular, biomedical applications such as drug delivery, biosensing, and regenerative therapies have benefited from the introduction of SBPs. Here, we review recent literature on the use of solid-binding peptides and solid-binding proteins in biomedical applications. We focus on applications where modulating the interactions between solid materials and biomolecules is crucial. In this review, we describe solid-binding peptides and proteins, providing background on sequence design and binding mechanism. We then discuss their application on materials relevant for biomedicine (calcium phosphates, silicates, ice crystals, metals, plastics, and graphene). Although the limited characterization of SBPs still represents a challenge for their design and widespread application, our review shows that SBP-mediated bioconjugation can be easily introduced into complex designs and on nanomaterials with very different surface chemistries.
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Verma R, Kumar Gupta S, Lamba NP, Singh BK, Singh S, Bahadur V, Chauhan MS. Graphene and Graphene Based Nanocomposites for Bio‐Medical and Bio‐safety Applications. ChemistrySelect 2023. [DOI: 10.1002/slct.202204337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Renu Verma
- Amity University Rajasthan Jaipur India- 303002
| | | | | | | | | | - Vijay Bahadur
- Alliance University Chandapura-Anekal Main Road Bengaluru India- 562106
- Department of Pharmaceutical and Pharmacological science, University of Houston Houston USA- 77204
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Jia X, Wang L, Chen Y, Ning X, Zhang Z, Xin H, Lv QX, Hou Y, Liu F, Kong L. TiO 2nanotubes induce early mitochondrial fission in BMMSCs and promote osseointegration. Biomed Mater 2023; 18. [PMID: 36720171 DOI: 10.1088/1748-605x/acb7bc] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/31/2023] [Indexed: 02/02/2023]
Abstract
Nanotopography can promote osseointegration, but how bone marrow mesenchymal stem cells (BMMSCs) respond to this physical stimulus is unclear. Here, we found that early exposure of BMMSCs to nanotopography (6 h) caused mitochondrial fission rather than fusion, which was necessary for osseointegration. We analyzed the changes in mitochondrial morphology and function of BMMSCs located on the surfaces of NT100 (100 nm nanotubes) and ST (smooth) by super-resolution microscopy and other techniques. Then, we found that both ST and NT100 caused a significant increase in mitochondrial fission early on, but NT100 caused mitochondrial fission much earlier than those on ST. In addition, the mitochondrial functional statuses were good at the 6 h time point, this is at odds with the conventional wisdom that fusion is good. This fission phenomenon adequately protected mitochondrial membrane potential (MMP) and respiration and reduced reactive oxygen species. Interestingly, the MMP and oxygen consumption rate of BMMSCs were reduced when mitochondrial fission was inhibited by Mdivi-1(Inhibition of dynamin-related protein 1 fission) in the early stage. In addition, the effect on osseointegration was significantly worse, and this effect did not improve with time. Taken together, the findings indicate that early mitochondrial fission plays an important role in nanotopography-mediated promotion of osseointegration, which is of great significance to the surface structure design of biomaterials.
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Affiliation(s)
- Xuelian Jia
- College of Life Sciences, Northwest University, Xi'an 710069, People's Republic of China.,State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Le Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Yicheng Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Xiaona Ning
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China.,Department of Ophthalmology, Tangdu Hospital, The Fourth Military Medical University, Xi'an 710038, People's Republic of China
| | - Zhouyang Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - He Xin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Qian-Xin Lv
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Yan Hou
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Fuwei Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
| | - Liang Kong
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, People's Republic of China
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76
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Daniel M, Eleršič Filipič K, Filová E, Judl T, Fojt J. Modelling the role of membrane mechanics in cell adhesion on titanium oxide nanotubes. Comput Methods Biomech Biomed Engin 2023; 26:281-290. [PMID: 35380071 DOI: 10.1080/10255842.2022.2058875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Titanium surface treated with titanium oxide nanotubes was used in many studies to quantify the effect of surface topography on cell fate. However, the predicted optimal diameter of nanotubes considerably differs among studies. We propose a model that explains cell adhesion to a nanostructured surface by considering the deformation energy of cell protrusions into titanium nanotubes and the adhesion to the surface. The optimal surface topology is defined as a geometry that gives the membrane a minimum energy shape. A dimensionless parameter, the cell interaction index, was proposed to describe the interplay between the cell membrane bending, the intrinsic curvature, and the strength of cell adhesion. Model simulation shows that an optimal nanotube diameter ranging from 20 nm to 100 nm (cell interaction index between 0.2 and 1, respectively) is feasible within a certain range of parameters describing cell membrane adhesion and bending. The results indicate a possibility to tune the topology of a nanostructural surface in order to enhance the proliferation and differentiation of cells mechanically compatible with the given surface geometry while suppressing the growth of other mechanically incompatible cells.
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Affiliation(s)
- Matej Daniel
- Faculty of Mechanical Engineering, Czech Technical University in Prague, Prague, Czechia
| | | | - Eva Filová
- Institute of Experimental Medicine of the Czech Academy of Sciences, Prague, Czechia
| | | | - Jaroslav Fojt
- Faculty of Chemical Technology, University of Chemistry and Technology Prague, Prague, Czechia
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77
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Simões IG, dos Reis AC, Valente MLDC. Influence of surface treatment by laser irradiation on bacterial adhesion on surfaces of titanium implants and their alloys: Systematic review. Saudi Dent J 2023; 35:111-124. [PMID: 36942202 PMCID: PMC10024099 DOI: 10.1016/j.sdentj.2023.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 01/02/2023] [Indexed: 01/07/2023] Open
Abstract
Objective The aim of this systematic review was to present the current knowledge on the influence of laser surface treatment on the adhesion of bacteria to titanium and its alloys. Design This review was structured according to PRISMA guidelines for systematic reviews and meta-analyses, and registered on the Open Science Framework platform (https://doi.org/10.17605/OSF.IO/FTA3W). Article searches were performed in 4 databases: PubMed, Scopus, Embase, and Science Direct. In addition, a manual search was performed in the reference lists of the selected articles. The selection of articles was performed by two reviewers. The articles found were screened for eligibility using the previously established inclusion and exclusion criteria. The methodological quality of the studies was assessed using the Joanna Briggs Institute (JBI) Critical Assessment Checklist for Quasi-Experimental Studies (non-randomized experimental studies). Results Most of the studies evaluated showed that surface treatment by laser irradiation can affect the adhesion of bacteria to titanium surfaces and that this is directly related to changes in surface properties such as chemical composition, morphology, roughness, and wettability, as well as the type of bacterial species involved. Conclusions The studies considered in this systematic review have shown that surface treatment by laser irradiation is a promising technique to reduce the adhesion of bacteria on the surface of titanium implants.
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Affiliation(s)
- Isadora Gazott Simões
- Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Andréa Cândido dos Reis
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Mariana Lima da Costa Valente
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
- Corresponding author at: Mariana Lima da Costa Valente, Ribeirão Preto Dental School, Av. do Café, s/n, 14040-904, Ribeirão Preto, SP, Brazil.
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Koppány F, Csomó KB, Varmuzsa EM, Bognár E, Pelyhe L, Nagy P, Kientzl I, Szabó D, Weszl M, Dobos G, Lenk S, Erdei G, Kiss G, Nagy L, Sréter A, Belik AA, Tóth Z, Vág J, Joób-Fancsaly Á, Németh Z. Enhancement of Hydrophilicity of Nano-Pitted TiO 2 Surface Using Phosphoric Acid Etching. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:511. [PMID: 36770473 PMCID: PMC9919856 DOI: 10.3390/nano13030511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Our research group developed a novel nano-pitted (NP) TiO2 surface on grade 2 titanium that showed good mechanical, osteogenic, and antibacterial properties; however, it showed weak hydrophilicity. Our objective was to develop a surface treatment method to enhance the hydrophilicity of the NP TiO2 surface without the destruction of the nano-topography. The effects of dilute and concentrated orthophosphoric (H3PO4) and nitric acids were investigated on wettability using contact angle measurement. Optical profilometry and atomic force microscopy were used for surface roughness measurement. The chemical composition of the TiO2 surface and the oxidation state of Ti was investigated using X-ray photoelectron spectroscopy. The ccH3PO4 treatment significantly increased the wettability of the NP TiO2 surfaces (30°) compared to the untreated control (88°). The quantity of the absorbed phosphorus significantly increased following ccH3PO4 treatment compared to the control and caused the oxidation state of titanium to decrease (Ti4+ → Ti3+). Owing to its simplicity and robustness the presented surface treatment method may be utilized in the industrial-scale manufacturing of titanium implants.
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Affiliation(s)
- Ferenc Koppány
- Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary
| | - Krisztián Benedek Csomó
- Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary
| | - Edvárd Márton Varmuzsa
- Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary
| | | | | | | | | | | | - Miklós Weszl
- Department of Translational Sciences, Semmelweis University, 1085 Budapest, Hungary
| | - Gábor Dobos
- Department of Atomic Physics, Institute of Physics, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Sándor Lenk
- Department of Atomic Physics, Institute of Physics, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Gábor Erdei
- Department of Atomic Physics, Institute of Physics, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Gábor Kiss
- Department of Atomic Physics, Institute of Physics, Budapest University of Technology and Economics, 1111 Budapest, Hungary
| | - Lilien Nagy
- Department of Prosthodontics, Semmelweis University, 1088 Budapest, Hungary
| | - Attila Sréter
- Faculty of Dentistry, Semmelweis University, 1085 Budapest, Hungary
| | | | - Zsuzsanna Tóth
- Department of Restorative Dentistry and Endodontics, Semmelweis University, 1088 Budapest, Hungary
| | - János Vág
- Department of Restorative Dentistry and Endodontics, Semmelweis University, 1088 Budapest, Hungary
| | - Árpád Joób-Fancsaly
- Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary
| | - Zsolt Németh
- Department of Oro-Maxillofacial Surgery and Stomatology, Semmelweis University, 1085 Budapest, Hungary
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79
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Guan S, Xiao T, Bai J, Ning C, Zhang X, Yang L, Li X. Clinical application of platelet-rich fibrin to enhance dental implant stability: A systematic review and meta-analysis. Heliyon 2023; 9:e13196. [PMID: 36785817 PMCID: PMC9918761 DOI: 10.1016/j.heliyon.2023.e13196] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 12/23/2022] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Objective To investigate the effect of platelet-rich fibrin application on implant stability. Study design Five databases, namely, PubMed, Embase, Web of Science, Wiley, and China National Knowledge Infrastructure, were searched for reports published up to November 20, 2022. Randomized controlled trials (RCT), including parallel RCTs and split-mouth RCTs, with at least 10 patients/sites were considered for inclusion. Results After screening based on the inclusion criteria, ten RCTs were included. Low heterogeneity was observed in study characteristics, outcome variables, and estimation scales (I2 = 27.2%, P = 0.19). The qualitative and meta-analysis results showed that PRF increased the effect of implant stabilizers after implant surgery. Conclusions The results of the present systematic review and meta-analysis suggest that PRF can increase implant stability after implant surgery. PRF may also have a role in accelerating bone healing and tends to promote new bone formation at the implant site.
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Affiliation(s)
- Shuai Guan
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang, 050017, PR China
| | - Tiepeng Xiao
- The Second Affiliated Hospital of Hebei Medical University, Shijiazhuang, 050000, PR China
| | - Jiuping Bai
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang, 050017, PR China
| | - Chunliu Ning
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang, 050017, PR China
| | - Xingkui Zhang
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang, 050017, PR China
| | - Lei Yang
- Department of Epidemiology and Statistics, School of Public Health, Hebei Key Laboratory of Environment and Human Health, Hebei Medical University, Shijiazhuang, 050017, PR China
| | - Xiangjun Li
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Hebei Medical University and Hebei Key Laboratory of Stomatology, Shijiazhuang, 050017, PR China,Corresponding author.
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Li J, Li J, Yang Y, He X, Wei X, Tan Q, Wang Y, Xu S, Chang S, Liu W. Biocompatibility and osteointegration capability of β-TCP manufactured by stereolithography 3D printing: In vitro study. Open Life Sci 2023; 18:20220530. [PMID: 36742452 PMCID: PMC9883693 DOI: 10.1515/biol-2022-0530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/27/2022] [Accepted: 11/02/2022] [Indexed: 01/26/2023] Open
Abstract
Beta-tricalcium phosphate (β-TCP) bioceramics have an inorganic composition similar to the human bone. While conventional methods can only produce ceramic scaffolds with poor controllability, the advancement of 3D-printing, especially stereolithography, made it possible to manufacture controllable, highly precise, micropore ceramic scaffolds. In this study, the stereolithography was applied to produce β-TCP bioceramics, while ZrO2, Al2O3, Ti6Al4V, and polyetheretherketone (PEEK) were used as controls. Phase analysis, water contact angle tests, and Micro-CT were applied to evaluate the surface properties and scaffold. Hemolytic toxicity, cell proliferation, and morphological assessment were performed to evaluate the biocompatibility. Alkaline phosphatase (ALP) level, mineralization, and qRT-PCR were measured to evaluate the osteointegration. During the manufacturing of β-TCP, no evident impurity substance and hemolytic toxicity was found. Cells on β-TCP had good morphologies, and their proliferation capability was similar to Ti6Al4V, which was higher than the other materials. Cells on β-TCP had higher ALP levels than PEEK. The degree of mineralization was significantly higher on β-TCP. The expression of osteogenesis-related genes on β-TCP was similar to Ti6Al4V and higher than the other materials. In this study, the β-TCP produced by stereolithography had no toxicity, high accuracy, and excellent osteointegration capability, thus resulting as a good choice for bone implants.
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Affiliation(s)
- Jialiang Li
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Jiaxi Li
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Yubing Yang
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Xijing He
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Xinyu Wei
- Department of Health Management, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Qinghua Tan
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Yiqun Wang
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Siyue Xu
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Sue Chang
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi Province, China
| | - Weiwei Liu
- Department of Precision Medicine Group, Equipment Research Institute, National Innovation Institute of Additive Manufacturing, Xi’an, Shaanxi Province, China
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Simões IG, Kreve S, Cruz MAE, Botelho AL, Ramos AP, Dos Reis AC, Valente MLDC. Influence of Er:YAG laser irradiation on surface properties of Ti-6Al-4V machined and hydroxyapatite coated. Lasers Med Sci 2023; 38:48. [PMID: 36689006 DOI: 10.1007/s10103-023-03719-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 01/17/2023] [Indexed: 01/24/2023]
Abstract
Surface treatment by laser irradiation can change the topography of titanium; however, little is known about the changes it causes when applied to other coatings. This study aimed to evaluate the influence of Er:YAG laser irradiation on the surface properties of titanium-aluminum-vanadium (Ti-6Al-4V) discs. Four Ti-6Al-4V surfaces were evaluated (n = 10): CON-control, machined without surface treatment; LT-machined + laser treatment; HA-hydroxyapatite coating; and LT-HA-hydroxyapatite coating + laser treatment. For the laser treatment, an Er:YAG laser with a wavelength of 2940 nm, a frequency of 10 Hz, and an energy density of 12.8 J/cm2 was used. The morphology of the coating was investigated by scanning electron microscopy and the surface composition by energy-dispersive X-ray spectroscopy. The influence of laser irradiation treatment on roughness and wettability was also evaluated. The Er:YAG laser promoted a significant reduction in the roughness Sa (p < 0.05) and in the contact angle (p = 0.002) of the LT surface compared to the CON surface. On the LT-HA surface, a significant decrease in roughness was observed only for the Rz parameter (p = 0.015) and an increase in the contact angle (p < 0.001) compared to the HA surface. The use of the Er:YAG laser with the evaluated parameters decreased the surface roughness and improved the wetting capacity of machined without surface treatment. In the group with hydroxyapatite coating, the laser influenced the surface roughness only for the parameter Rz and reduced their wetting capacity.
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Affiliation(s)
- Isadora Gazott Simões
- Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Simone Kreve
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Marcos Antônio Eufrásio Cruz
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - André Luís Botelho
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Ana Paula Ramos
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Andréa Cândido Dos Reis
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil
| | - Mariana Lima da Costa Valente
- Department of Dental Materials and Prosthodontics, Ribeirão Preto Dental School, University of São Paulo, (USP), Ribeirão Preto, São Paulo, Brazil.
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82
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Jo YK, Choi B, Zhou C, Jun SH, Cha HJ. Cell recognitive bioadhesive‐based osteogenic barrier coating with localized delivery of bone morphogenetic protein‐2 for accelerated guided bone regeneration. Bioeng Transl Med 2023; 8:e10493. [DOI: 10.1002/btm2.10493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Affiliation(s)
- Yun Kee Jo
- Department of Biomedical Convergence Science and Technology School of Convergence, Kyungpook National University Daegu Republic of Korea
- Cell and Matrix Research Institute, Kyungpook National University Daegu South Korea
| | | | - Cong Zhou
- School of Stomatology, Shandong University Jinan China
| | - Sang Ho Jun
- Department of Oral and Maxillofacial Surgery Korea University Anam Hospital Seoul Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering Pohang University of Science and Technology Pohang Republic of Korea
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83
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Wang L, Xu C, Meng K, Xia Y, Zhang Y, Lian J, Wang X, Zhao B. Biomimetic Hydroxyapatite Composite Coatings with a Variable Morphology Mediated by Silk Fibroin and Its Derived Peptides Enhance the Bioactivity on Titanium. ACS Biomater Sci Eng 2023; 9:165-181. [PMID: 36472618 DOI: 10.1021/acsbiomaterials.2c00995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Various modifications performed on titanium alloy surfaces are shown to improve osteointegration and promote the long-term success of implants. In this work, a bioactive nanostructured hydroxyapatite (HA) composite coating with a variable morphology mediated by silk fibroin (SF) and its derived peptides (Cs) was prepared. Numerous experimental techniques were used to characterize the constructed coatings in terms of morphology, roughness, hydrophilicity, protein adsorption, in vitro biomineralization, and adhesion strength. The mixed protein layer with different contents of SF and Cs exhibited different secondary structures at different temperatures, effectively mediating the electrodeposited HA layer with different characteristics and finally forming proteins/HA composite coatings with versatile morphologies. The addition of Cs significantly improved the hydrophilicity and protein adsorption capacity of the composite coatings, while the electrodeposition of the HA layer effectively enhanced the adhesion between the composite coatings and Ti surface. In the in vitro mineralization experiments, all the composite coatings exhibited excellent apatite formation ability. Moreover, the composite coatings showed excellent cell growth and proliferation activity. Osteogenic induction experiments revealed that the coating could significantly increase the expression of specific osteogenic markers, including ALP, Col-I, Runx-2, and OCN. Overall, the proposed modification of the Ti implant surface by protein/HA coatings had good potential for clinical applications in enhancing bone induction and osteogenic activity of implants.
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Affiliation(s)
- Lu Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Changzhen Xu
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Kejing Meng
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Yijing Xia
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Yufang Zhang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Jing Lian
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Xing Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
| | - Bin Zhao
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi 030000, China
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84
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Li W, Ding Q, Sun F, Liu B, Yuan F, Zhang L, Bao R, Gu J, Lin Y. Fatigue behavior of zirconia with microgrooved surfaces produced using femtosecond laser. Lasers Med Sci 2023; 38:33. [PMID: 36598586 DOI: 10.1007/s10103-022-03679-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 11/19/2022] [Indexed: 01/05/2023]
Abstract
Femtosecond laser is a promising surface treatment tool for zirconia implant. In this study, the fatigue behavior of zirconia specimens with microgrooved surfaces formed by femtosecond laser is reported. One hundred sixty CAD/CAM zirconia bars (20 mm × 4 mm × 1.4 mm) were evenly divided into four groups with different surface: as sintered; sandblasted with 110 μm Al2O3; femtosecond laser produced microgrooves having 50 μm width, 30 μm depth, and 100 μm pitch; microgrooves having 30 μm width, 20 μm depth, and 60 μm pitch. The femtosecond laser formed micro/nanostructured microgrooves with precise size on zirconia surfaces. XRD analysis indicated that microgrooved surface showed no obvious tetragonal-to-monoclinic phase transformation. The fatigue strength of sandblasted specimens (728 MPa) was significantly higher than that of as sintered specimens (570 MPa). However, the fatigue strength of specimens with microgrooved surface decreased to about 360-380 MPa. The results suggest femtosecond laser is an effective technique to regulate the surface microtopography of zirconia, while further investigations are needed to improve its fatigue behavior.
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Affiliation(s)
- Wenjin Li
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
| | - Qian Ding
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China
| | - Fengbo Sun
- School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
| | - Binchao Liu
- School of Aeronautic Science and Engineering, Beihang University, 100191, Beijing, China
| | - Fusong Yuan
- Center of Digital Dentistry, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Research Center of Engineering and Technology for Digital Dentistry, Ministry of Health, Beijing, 100081, China
| | - Lei Zhang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, China.
| | - Rui Bao
- School of Aeronautic Science and Engineering, Beihang University, 100191, Beijing, China
| | - Jinghua Gu
- School of Materials Science and Engineering, Beihang University, Beijing, 100191, China
| | - Yuanhua Lin
- School of Materials Science and Engineering, Tsinghua University, 100084, Beijing, China
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85
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Deep inside of the mechanism of electrochemical surface etching of α+β Ti6Al4V alloy in room-temperature deep eutectic solvent Ethaline. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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86
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Costa RC, Nagay BE, Dini C, Borges MHR, Miranda LFB, Cordeiro JM, Souza JGS, Sukotjo C, Cruz NC, Barão VAR. The race for the optimal antimicrobial surface: perspectives and challenges related to plasma electrolytic oxidation coating for titanium-based implants. Adv Colloid Interface Sci 2023; 311:102805. [PMID: 36434916 DOI: 10.1016/j.cis.2022.102805] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/01/2022] [Accepted: 10/20/2022] [Indexed: 01/24/2023]
Abstract
Plasma electrolytic oxidation (PEO) is a low-cost, structurally reliable, and environmentally friendly surface modification method for orthopedic and dental implants. This technique is successful for the formation of porous, corrosion-resistant, and bioactive coatings, besides introducing antimicrobial compounds easily. Given the increase in implant-related infections, antimicrobial PEO-treated surfaces have been widely proposed to surmount this public health concern. This review comprehensively discusses antimicrobial implant surfaces currently produced by PEO in terms of their in vitro and in vivo microbiological and biological properties. We present a critical [part I] and evidence-based [part II] review about the plethora of antimicrobial PEO-treated surfaces. The mechanism of microbial accumulation on implanted devices and the principles of PEO technology to ensure antimicrobial functionalization by one- or multi-step processes are outlined. Our systematic literature search showed that particular focus has been placed on the metallic and semi-metallic elements incorporated into PEO surfaces to facilitate antimicrobial properties, which are often dose-dependent, without leading to cytotoxicity in vitro. Meanwhile, there are concerns over the biocompatibility of PEO and its long-term antimicrobial effects in animal models. We clearly highlight the importance of using clinically relevant infection models and in vivo long-term assessments to guarantee the rational design of antimicrobial PEO-treated surfaces to identify the 'finish line' in the race for antimicrobial implant surfaces.
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Affiliation(s)
- Raphael C Costa
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sāo Paulo 13414-903, Brazil
| | - Bruna E Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sāo Paulo 13414-903, Brazil
| | - Caroline Dini
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sāo Paulo 13414-903, Brazil
| | - Maria H R Borges
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sāo Paulo 13414-903, Brazil
| | - Luís F B Miranda
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sāo Paulo 13414-903, Brazil
| | - Jairo M Cordeiro
- Department of Dentistry, Centro Universitário das Faculdades Associadas de Ensino (UNIFAE), Sāo Joāo da Boa Vista, Sāo Paulo 13870-377, Brazil
| | - Joāo G S Souza
- Dental Research Division, Guarulhos University, Guarulhos, Sāo Paulo 07023-070, Brazil; Dentistry Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais 39401-303, Brazil
| | - Cortino Sukotjo
- Department of Restorative Dentistry, University of Illinois at Chicago College of Dentistry, Chicago, IL 60612, USA
| | - Nilson C Cruz
- Laboratory of Technological Plasmas, Institute of Science and Technology, Sāo Paulo State University (UNESP), Sorocaba, Sāo Paulo 18087-180, Brazil
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, Sāo Paulo 13414-903, Brazil.
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87
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Liao M, Shi Y, Chen E, Shou Y, Dai D, Xian W, Ren B, Xiao S, Cheng L. The Bio-Aging of Biofilms on Behalf of Various Oral Status on Different Titanium Implant Materials. Int J Mol Sci 2022; 24:ijms24010332. [PMID: 36613775 PMCID: PMC9820730 DOI: 10.3390/ijms24010332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
The properties of titanium implants are affected by bio-aging due to long-term exposure to the oral microenvironment. This study aimed to investigate probable changes in titanium plates after different biofilm bio-aging processes, representing various oral status. Titanium plates with different surface treatments were used, including polish, sandblasted with large grit and acid etched (SLA), microarc oxidation (MAO), and hydroxyapatite coating (HA). We established dual-species biofilms of Staphylococcus aureus (S. aureus)-Candida albicans (C. albicans) and saliva biofilms from the healthy and patients with stage III-IV periodontitis, respectively. After bio-aging with these biofilms for 30 days, the surface morphology, chemical composition, and water contact angles were measured. The adhesion of human gingival epithelial cells, human gingival fibroblasts, and three-species biofilms (Streptococcus sanguis, Porphyromonas gingivalis, and Fusobacterium nucleatum) were evaluated. The polished specimens showed no significant changes after bio-aging with these biofilms. The MAO- and SLA-treated samples showed mild corrosion after bio-aging with the salivary biofilms. The HA-coated specimens were the most vulnerable. Salivary biofilms, especially saliva from patients with periodontitis, exhibited a more distinct erosion on the HA-coating than the S. aureus-C. albicans dual-biofilms. The coating became thinner and even fell from the substrate. The surface became more hydrophilic and more prone to the adhesion of bacteria. The S. aureus-C. albicans dual-biofilms had a comparatively mild corrosion effect on these samples. The HA-coated samples showed more severe erosion after bio-aging with the salivary biofilms from patients with periodontitis compared to those of the healthy, which emphasized the importance of oral hygiene and periodontal health to implants in the long run.
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Affiliation(s)
- Min Liao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yangyang Shi
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Enni Chen
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Yuke Shou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Dongyue Dai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Wenpan Xian
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Biao Ren
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
| | - Shimeng Xiao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Correspondence: (S.X.); (L.C.)
| | - Lei Cheng
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, National Clinical Research Centre for Oral Diseases, Sichuan University, Chengdu 610064, China
- Department of Operative Dentistry and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
- Correspondence: (S.X.); (L.C.)
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88
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Ding M, Shi J, Wang W, Li D, Tian L. Early osseointegration of micro-arc oxidation coated titanium alloy implants containing Ag: a histomorphometric study. BMC Oral Health 2022; 22:628. [PMID: 36550526 PMCID: PMC9783399 DOI: 10.1186/s12903-022-02673-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND This study aimed to evaluate bone response to micro-arc oxidation coated titanium alloy implants containing Ag. METHODS 144 titanium alloy implants were prepared by machine grinding and divided into three treatment groups as following, SLA group: sand-blasting and acid-etched coating; MAO group: micro-arc oxidation without Ag coating; MAO + Ag group: micro-arc oxidation containing Ag coating. Surface characterization of three kind of implants were observed by X-ray diffraction, energy dispersive X-ray spectrometer, scanning electron microscopy, High Resolution Transmission Electron Microscope and roughness analysis. The implants were inserted into dog femurs. 4, 8 and 12 weeks after operation, the bone response to the implant to the bone was evaluated by push-out experiment, histological and fluorescent labeling analysis. RESULTS MAO + Ag group consisted of a mixture of anatase and rutile. Ag was found in the form of Ag2O on the surface. The surface morphology of MAO + Ag group seemed more like a circular crater with upheaved edges and holes than the other two groups. The surface roughness of MAO and MAO + Ag groups were higher than SLA group, but no statistical difference between MAO and MAO + Ag groups. The contact angles in MAO + Ag group was smallest and the surface free energy was the highest among three groups. The maximum push-out strength of MAO and MAO + Ag groups were higher than SLA group at all time point, the value of MAO + Ag group was higher than MAO group at 4 and 8 weeks. Scanning electron microscopy examination for the surface and cross-section of the bone segments and fluorescent labeling analysis showed that the ability of bone formation and osseointegration in MAO + Ag group was higher than that of the other two groups. CONCLUSION The micro-arc oxidation combination with Ag coating is an excellent surface modification technique to posse porous surface structure and hydrophilicity on the titanium alloy implants surface and exhibits desirable ability of osseointegration.
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Affiliation(s)
- Mingchao Ding
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, No. 145 Changle Xi Road, Xi’an, 710032 People’s Republic of China
| | - Jin Shi
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, No. 145 Changle Xi Road, Xi’an, 710032 People’s Republic of China
| | - Weiqi Wang
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, No. 145 Changle Xi Road, Xi’an, 710032 People’s Republic of China
| | - Dechao Li
- grid.410645.20000 0001 0455 0905Qingdao Stomatological Hospital Affiliated to Qingdao University, No. 17 Dexian Road, Shinan District, Qingdao, 266001 Shandong Province People’s Republic of China
| | - Lei Tian
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, No. 145 Changle Xi Road, Xi’an, 710032 People’s Republic of China
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89
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Osseointegration Properties of Titanium Implants Treated by Nonthermal Atmospheric-Pressure Nitrogen Plasma. Int J Mol Sci 2022; 23:ijms232315420. [PMID: 36499747 PMCID: PMC9740438 DOI: 10.3390/ijms232315420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Pure titanium is used in dental implants owing to its excellent biocompatibility and physical properties. However, the aging of the material during storage is detrimental to the long-term stability of the implant after implantation. Therefore, in this study, we attempted to improve the surface properties and circumvent the negative effects of material aging on titanium implants by using a portable handheld nonthermal plasma device capable of piezoelectric direct discharge to treat pure titanium discs with nitrogen gas. We evaluated the osteogenic properties of the treated samples by surface morphology and elemental analyses, as well as in vitro and in vivo experiments. The results showed that nonthermal atmospheric-pressure nitrogen plasma can improve the hydrophilicity of pure titanium without damaging its surface morphology while introducing nitrogen-containing functional groups, thereby promoting cell attachment, proliferation, and osseointegration to some extent. Therefore, nitrogen plasma treatment may be a promising method for the rapid surface treatment of titanium implants.
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90
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Cao D, Ding J. Recent advances in regenerative biomaterials. Regen Biomater 2022; 9:rbac098. [PMID: 36518879 PMCID: PMC9745784 DOI: 10.1093/rb/rbac098] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/23/2022] [Accepted: 12/01/2022] [Indexed: 07/22/2023] Open
Abstract
Nowadays, biomaterials have evolved from the inert supports or functional substitutes to the bioactive materials able to trigger or promote the regenerative potential of tissues. The interdisciplinary progress has broadened the definition of 'biomaterials', and a typical new insight is the concept of tissue induction biomaterials. The term 'regenerative biomaterials' and thus the contents of this article are relevant to yet beyond tissue induction biomaterials. This review summarizes the recent progress of medical materials including metals, ceramics, hydrogels, other polymers and bio-derived materials. As the application aspects are concerned, this article introduces regenerative biomaterials for bone and cartilage regeneration, cardiovascular repair, 3D bioprinting, wound healing and medical cosmetology. Cell-biomaterial interactions are highlighted. Since the global pandemic of coronavirus disease 2019, the review particularly mentions biomaterials for public health emergency. In the last section, perspectives are suggested: (i) creation of new materials is the source of innovation; (ii) modification of existing materials is an effective strategy for performance improvement; (iii) biomaterial degradation and tissue regeneration are required to be harmonious with each other; (iv) host responses can significantly influence the clinical outcomes; (v) the long-term outcomes should be paid more attention to; (vi) the noninvasive approaches for monitoring in vivo dynamic evolution are required to be developed; (vii) public health emergencies call for more research and development of biomaterials; and (viii) clinical translation needs to be pushed forward in a full-chain way. In the future, more new insights are expected to be shed into the brilliant field-regenerative biomaterials.
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Affiliation(s)
- Dinglingge Cao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200438, China
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91
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He Y, Gao Y, Ma Q, Zhang X, Zhang Y, Song W. Nanotopographical cues for regulation of macrophages and osteoclasts: emerging opportunities for osseointegration. J Nanobiotechnology 2022; 20:510. [PMID: 36463225 PMCID: PMC9719660 DOI: 10.1186/s12951-022-01721-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/22/2022] [Indexed: 12/05/2022] Open
Abstract
Nanotopographical cues of bone implant surface has direct influences on various cell types during the establishment of osseointegration, a prerequisite of implant bear-loading. Given the important roles of monocyte/macrophage lineage cells in bone regeneration and remodeling, the regulation of nanotopographies on macrophages and osteoclasts has arisen considerable attentions recently. However, compared to osteoblastic cells, how nanotopographies regulate macrophages and osteoclasts has not been properly summarized. In this review, the roles and interactions of macrophages, osteoclasts and osteoblasts at different stages of bone healing is firstly presented. Then, the diversity and preparation methods of nanotopographies are summarized. Special attentions are paid to the regulation characterizations of nanotopographies on macrophages polarization and osteoclast differentiation, as well as the focal adhesion-cytoskeleton mediated mechanism. Finally, an outlook is indicated of coordinating nanotopographies, macrophages and osteoclasts to achieve better osseointegration. These comprehensive discussions may not only help to guide the optimization of bone implant surface nanostructures, but also provide an enlightenment to the osteoimmune response to external implant.
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Affiliation(s)
- Yide He
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
| | - Yuanxue Gao
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
| | - Qianli Ma
- grid.5510.10000 0004 1936 8921Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway
| | - Xige Zhang
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, The Fourth Military Medical University, Shaanxi Xi’an, 710032 China
| | - Yumei Zhang
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
| | - Wen Song
- grid.233520.50000 0004 1761 4404State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Oral Diseases, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
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92
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Enhanced corrosion resistance in an inflammatory environment and osteogenic properties of silicalite-1 coated titanium alloy implants. Colloids Surf B Biointerfaces 2022; 220:112922. [DOI: 10.1016/j.colsurfb.2022.112922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 10/07/2022] [Accepted: 10/10/2022] [Indexed: 11/07/2022]
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93
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TiO 2/HA and Titanate/HA Double-Layer Coatings on Ti6Al4V Surface and Their Influence on In Vitro Cell Growth and Osteogenic Potential. J Funct Biomater 2022; 13:jfb13040271. [PMID: 36547531 PMCID: PMC9787412 DOI: 10.3390/jfb13040271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022] Open
Abstract
Hydroxyapatite (HA) layers are appropriate biomaterials for use in the modification of the surface of implants produced inter alia from a Ti6Al4V alloy. The issue that must be solved is to provide implants with appropriate biointegration properties, enabling the permanent link between them and bone tissues, which is not so easy with the HA layer. Our proposition is the use of the intermediate layer ((IL) = TiO2, and titanate layers) to successfully link the HA coating to a metal substrate (Ti6Al4V). The morphology, structure, and chemical composition of Ti6Al4V/IL/HA systems were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive X-ray spectrometry (EDS). We evaluated the apatite-forming ability on the surface of the layer in simulated body fluid. We investigated the effects of the obtained systems on the viability and growth of human MG-63 osteoblast-like cells, mouse L929 fibroblasts, and adipose-derived human mesenchymal stem cells (ADSCs) in vitro, as well as on their osteogenic properties. Based on the obtained results, we can conclude that both investigated systems reflect the physiological environment of bone tissue and create a biocompatible surface supporting cell growth. However, the nanoporous TiO2 intermediate layer with osteogenesis-supportive activity seems most promising for the practical application of Ti6Al4V/TiO2/HA as a system of bone tissue regeneration.
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94
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Shirazi S, Ravindran S, Cooper LF. Topography-mediated immunomodulation in osseointegration; Ally or Enemy. Biomaterials 2022; 291:121903. [PMID: 36410109 PMCID: PMC10148651 DOI: 10.1016/j.biomaterials.2022.121903] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/02/2022] [Accepted: 11/04/2022] [Indexed: 11/11/2022]
Abstract
Osteoimmunology is at full display during endosseous implant osseointegration. Bone formation, maintenance and resorption at the implant surface is a result of bidirectional and dynamic reciprocal communication between the bone and immune cells that extends beyond the well-defined osteoblast-osteoclast signaling. Implant surface topography informs adherent progenitor and immune cell function and their cross-talk to modulate the process of bone accrual. Integrating titanium surface engineering with the principles of immunology is utilized to harness the power of immune system to improve osseointegration in healthy and diseased microenvironments. This review summarizes current information regarding immune cell-titanium implant surface interactions and places these events in the context of surface-mediated immunomodulation and bone regeneration. A mechanistic approach is directed in demonstrating the central role of osteoimmunology in the process of osseointegration and exploring how regulation of immune cell function at the implant-bone interface may be used in future control of clinical therapies. The process of peri-implant bone loss is also informed by immunomodulation at the implant surface. How surface topography is exploited to prevent osteoclastogenesis is considered herein with respect to peri-implant inflammation, osteoclastic precursor-surface interactions, and the upstream/downstream effects of surface topography on immune and progenitor cell function.
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Affiliation(s)
- Sajjad Shirazi
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA.
| | - Sriram Ravindran
- Department of Oral Biology, College of Dentistry, University of Illinois Chicago, Chicago, IL, USA
| | - Lyndon F Cooper
- School of Dentistry, Virginia Commonwealth University, Richmond, VA, USA.
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95
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Alipour S, Nour S, Attari SM, Mohajeri M, Kianersi S, Taromian F, Khalkhali M, Aninwene GE, Tayebi L. A review on in vitro/ in vivo response of additively manufactured Ti-6Al-4V alloy. J Mater Chem B 2022; 10:9479-9534. [PMID: 36305245 DOI: 10.1039/d2tb01616h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Bone replacement using porous and solid metallic implants, such as Ti-alloy implants, is regarded as one of the most practical therapeutic approaches in biomedical engineering. The bone is a complex tissue with various mechanical properties based on the site of action. Patient-specific Ti-6Al-4V constructs may address the key needs in bone treatment for having customized implants that mimic the complex structure of the natural tissue and diminish the risk of implant failure. This review focuses on the most promising methods of fabricating such patient-specific Ti-6Al-4V implants using additive manufacturing (AM) with a specific emphasis on the popular subcategory, which is powder bed fusion (PBF). Characteristics of the ideal implant to promote optimized tissue-implant interactions, as well as physical, mechanical/chemical treatments and modifications will be discussed. Accordingly, such investigations will be classified into 3B-based approaches (Biofunctionality, Bioactivity, and Biostability), which mainly govern native body response and ultimately the success in implantation.
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Affiliation(s)
- Saeid Alipour
- Department of Materials Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA
| | - Shirin Nour
- Tissue Engineering Group, Department of Biomedical Engineering, University of Melbourne, VIC 3010, Australia.,Polymer Science Group, Department of Chemical Engineering, University of Melbourne, VIC 3010, Australia
| | - Seyyed Morteza Attari
- Department of Material Science and Engineering, University of Connecticut, Storrs, Connecticut, USA
| | - Mohammad Mohajeri
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, TX, USA
| | - Sogol Kianersi
- CÚRAM, SFI Centre for Research in Medical Devices, Biomedical Sciences, University of Galway, Galway, Ireland
| | - Farzaneh Taromian
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mohammadparsa Khalkhali
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - George E Aninwene
- Department of Bioengineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, California, USA.,Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, California, USA.,California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, California, USA
| | - Lobat Tayebi
- School of Dentistry, Marquette University, Milwaukee, Wisconsin, USA.
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96
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Hallmann L, Gerngroß MD. Chitosan and its application in dental implantology. JOURNAL OF STOMATOLOGY, ORAL AND MAXILLOFACIAL SURGERY 2022; 123:e701-e707. [PMID: 35183801 DOI: 10.1016/j.jormas.2022.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Revised: 12/29/2021] [Accepted: 02/14/2022] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The aim of this review was to evaluate the properties of chitosan for an application in dental implantology. METHODS Electronic Databases: PubMed, Google Scholar, Scopus, were used to recherche the articles published from 2010 to 2021. The keywords used were: chitosan, biocompatible, antibacterial, osseointegration, implant, bioactive. After a carefully selection according to the above keywords 46 articles met the condition to be studied RESULTS: Chitosan is a biopolymer, that can be easy produced. Its antibacterial, anti-inflammatory, anti-fugal, hemostatic, analgesic, mucoadhesive, osseointegrative properties and its excellent film-forming ability make chitosan a material with a future in dental implantology and in other areas of dental applications. Titan implants coated with chitosan showed better bioactive properties than uncoated implants. The treatment of the implant surface played an important role on the stability of implants. The activity of osteoblasts increased when the surface was laser-treated followed by coating with chitosan. The subsequent coating with apatite improved the bioactivity of chitosan. CONCLUSION Chitosan is a promising biocompatible and bioactive material in dental implantology. Its antibacterial properties can be enhanced by modification of its structure. Its bioactive properties can be improved when mixing with hydroxy apatite.
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97
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Yang Y, Lin Y, Xu R, Zhang Z, Zeng W, Xu Q, Deng F. Micro/Nanostructured Topography on Titanium Orchestrates Dendritic Cell Adhesion and Activation via β2 Integrin-FAK Signals. Int J Nanomedicine 2022; 17:5117-5136. [PMID: 36345509 PMCID: PMC9636866 DOI: 10.2147/ijn.s381222] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/06/2022] [Indexed: 11/07/2022] Open
Abstract
Background and Purpose In clinical application of dental implants, the functional state of dendritic cells (DCs) has been suggested to have a close relationship with the implant survival rate or speed of osseointegration. Although microscale surfaces have a stable osteogenesis property, they also incline to trigger unfavorable DCs activation and threaten the osseointegration process. Nanoscale structures have an advantage in regulating cell immune response through orchestrating cell adhesion, indicating the potential of hierarchical micro/nanostructured surface in regulation of DCs’ activation without sacrificing the advantage of microscale topography. Materials and Methods Two micro/nanostructures were fabricated based on microscale rough surfaces through anodization or alkali treatment, the sand-blasted and acid-etched (SA) surface served as control. The surface characteristics, in vitro and in vivo DC immune reactions and β2 integrin-FAK signal expression were systematically investigated. The DC responses to different surface topographies after FAK inhibition were also tested. Results Both micro/nano-modified surfaces exhibited unique composite structures, with higher hydrophilicity and lower roughness compared to the SA surface. The DCs showed relatively immature functional states with round morphologies and significantly downregulated β2 integrin-FAK levels on micro/nanostructures. Implant surfaces with micro/nano-topographies also triggered lower levels of DC inflammatory responses than SA surfaces in vivo. The inhibited FAK activation effectively reduced the differences in topography-caused DC activation and narrowed the differences in DC activation among the three groups. Conclusion Compared to the SA surface with solely micro-scale topography, titanium surfaces with hybrid micro/nano-topographies reduced DC inflammatory response by influencing their adhesion states. This regulatory effect was accompanied by the modulation of β2 integrin-FAK signal expression. The β2 integrin-FAK-mediated adhesion plays a critical role in topography-induced DC activation, which represents a potential target for material–cell interaction regulation.
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Affiliation(s)
- Yang Yang
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Yujing Lin
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Ruogu Xu
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Zhengchuan Zhang
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Wenyi Zeng
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
| | - Qiong Xu
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China,Correspondence: Qiong Xu; Feilong Deng, Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat-Sen University, No. 56, Ling Yuan Xi Road, Guangzhou, 510055, People’s Republic of China, Tel +86 20 83862537, Fax +86 20 83822807, Email ;
| | - Feilong Deng
- Department of Oral Implantology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, People’s Republic of China,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, People’s Republic of China
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98
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Jones CF, Quarrington RD, Tsangari H, Starczak Y, Mulaibrahimovic A, Burzava ALS, Christou C, Barker AJ, Morel J, Bright R, Barker D, Brown T, Vasilev K, Anderson PH. A Novel Nanostructured Surface on Titanium Implants Increases Osseointegration in a Sheep Model. Clin Orthop Relat Res 2022; 480:2232-2250. [PMID: 36001022 PMCID: PMC10476811 DOI: 10.1097/corr.0000000000002327] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 06/28/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND A nanostructured titanium surface that promotes antimicrobial activity and osseointegration would provide the opportunity to create medical implants that can prevent orthopaedic infection and improve bone integration. Although nanostructured surfaces can exhibit antimicrobial activity, it is not known whether these surfaces are safe and conducive to osseointegration. QUESTIONS/PURPOSES Using a sheep animal model, we sought to determine whether the bony integration of medical-grade, titanium, porous-coated implants with a unique nanostructured surface modification (alkaline heat treatment [AHT]) previously shown to kill bacteria was better than that for a clinically accepted control surface of porous-coated titanium covered with hydroxyapatite (PCHA) after 12 weeks in vivo. The null hypothesis was that there would be no difference between implants with respect to the primary outcomes: interfacial shear strength and percent intersection surface (the percentage of implant surface with bone contact, as defined by a micro-CT protocol), and the secondary outcomes: stiffness, peak load, energy to failure, and micro-CT (bone volume/total volume [BV/TV], trabecular thickness [Tb.Th], and trabecular number [Tb.N]) and histomorphometric (bone-implant contact [BIC]) parameters. METHODS Implants of each material (alkaline heat-treated and hydroxyapatite-coated titanium) were surgically inserted into femoral and tibial metaphyseal cancellous bone (16 per implant type; interference fit) and in tibial cortices at three diaphyseal locations (24 per implant type; line-to-line fit) in eight skeletally mature sheep. At 12 weeks postoperatively, bones were excised to assess osseointegration of AHT and PCHA implants via biomechanical push-through tests, micro-CT, and histomorphometry. Bone composition and remodeling patterns in adult sheep are similar to that of humans, and this model enables comparison of implants with ex vivo outcomes that are not permissible with humans. Comparisons of primary and secondary outcomes were undertaken with linear mixed-effects models that were developed for the cortical and cancellous groups separately and that included a random effect of animals, covariates to adjust for preoperative bodyweight, and implant location (left/right limb, femoral/tibial cancellous, cortical diaphyseal region, and medial/lateral cortex) as appropriate. Significance was set at an alpha of 0.05. RESULTS The estimated marginal mean interfacial shear strength for cancellous bone, adjusted for covariates, was 1.6 MPa greater for AHT implants (9.3 MPa) than for PCHA implants (7.7 MPa) (95% CI 0.5 to 2.8; p = 0.006). Similarly, the estimated marginal mean interfacial shear strength for cortical bone, adjusted for covariates, was 6.6 MPa greater for AHT implants (25.5 MPa) than for PCHA implants (18.9 MPa) (95% CI 5.0 to 8.1; p < 0.001). No difference in the implant-bone percent intersection surface was detected for cancellous sites (cancellous AHT 55.1% and PCHA 58.7%; adjusted difference of estimated marginal mean -3.6% [95% CI -8.1% to 0.9%]; p = 0.11). In cortical bone, the estimated marginal mean percent intersection surface at the medial site, adjusted for covariates, was 11.8% higher for AHT implants (58.1%) than for PCHA (46.2% [95% CI 7.1% to 16.6%]; p < 0.001) and was not different at the lateral site (AHT 75.8% and PCHA 74.9%; adjusted difference of estimated marginal mean 0.9% [95% CI -3.8% to 5.7%]; p = 0.70). CONCLUSION These data suggest there is stronger integration of bone on the AHT surface than on the PCHA surface at 12 weeks postimplantation in this sheep model. CLINICAL RELEVANCE Given that the AHT implants formed a more robust interface with cortical and cancellous bone than the PCHA implants, a clinical noninferiority study using hip stems with identical geometries can now be performed to compare the same surfaces used in this study. The results of this preclinical study provide an ethical baseline to proceed with such a clinical study given the potential of the alkaline heat-treated surface to reduce periprosthetic joint infection and enhance implant osseointegration.
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Affiliation(s)
- Claire F. Jones
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
- School of Mechanical Engineering, The University of Adelaide, Adelaide, Australia
| | - Ryan D. Quarrington
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Helen Tsangari
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Yolandi Starczak
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Adnan Mulaibrahimovic
- Centre for Orthopaedic and Trauma Research, Adelaide Medical School, The University of Adelaide, Adelaide, Australia
| | - Anouck L. S. Burzava
- STEM, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | - Chris Christou
- Preclinical, Imaging and Research Laboratories, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Alex J. Barker
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | | | - Richard Bright
- STEM, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | | | | | - Krasimir Vasilev
- STEM, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
| | - Paul H. Anderson
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
- Future Industries Institute, University of South Australia, Adelaide, Australia
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99
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In Vitro and In Vivo Studies of Hydrogenated Titanium Dioxide Nanotubes with Superhydrophilic Surfaces during Early Osseointegration. Cells 2022; 11:cells11213417. [DOI: 10.3390/cells11213417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/23/2022] [Accepted: 10/26/2022] [Indexed: 11/17/2022] Open
Abstract
Titanium-based implants are often utilized in oral implantology and craniofacial reconstructions. However, the biological inertness of machined titanium commonly results in unsatisfactory osseointegration. To improve the osseointegration properties, we modified the titanium implants with nanotubular/superhydrophilic surfaces through anodic oxidation and thermal hydrogenation and evaluated the effects of the machined surfaces (M), nanotubular surfaces (Nano), and hydrogenated nanotubes (H-Nano) on osteogenesis and osseointegration in vitro and in vivo. After incubation of mouse bone marrow mesenchymal stem cells on the samples, we observed improved cell adhesion, alkaline phosphatase activity, osteogenesis-related gene expression, and extracellular matrix mineralization in the H-Nano group compared to the other groups. Subsequent in vivo studies indicated that H-Nano implants promoted rapid new bone regeneration and osseointegration at 4 weeks, which may be attributed to the active osteoblasts adhering to the nanotubular/superhydrophilic surfaces. Additionally, the Nano group displayed enhanced osteogenesis in vitro and in vivo at later stages, especially at 8 weeks. Therefore, we report that hydrogenated superhydrophilic nanotubes can significantly accelerate osteogenesis and osseointegration at an early stage, revealing the considerable potential of this implant modification for clinical applications.
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100
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Mansoor A, Khurshid Z, Khan MT, Mansoor E, Butt FA, Jamal A, Palma PJ. Medical and Dental Applications of Titania Nanoparticles: An Overview. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203670. [PMID: 36296859 PMCID: PMC9611494 DOI: 10.3390/nano12203670] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 05/25/2023]
Abstract
Currently, titanium oxide (TiO2) nanoparticles are successfully employed in human food, drugs, cosmetics, advanced medicine, and dentistry because of their non-cytotoxic, non-allergic, and bio-compatible nature when used in direct close contact with the human body. These NPs are the most versatile oxides as a result of their acceptable chemical stability, lower cost, strong oxidation properties, high refractive index, and enhanced aesthetics. These NPs are fabricated by conventional (physical and chemical) methods and the latest biological methods (biological, green, and biological derivatives), with their advantages and disadvantages in this epoch. The significance of TiO2 NPs as a medical material includes drug delivery release, cancer therapy, orthopedic implants, biosensors, instruments, and devices, whereas their significance as a dental biomaterial involves dentifrices, oral antibacterial disinfectants, whitening agents, and adhesives. In addition, TiO2 NPs play an important role in orthodontics (wires and brackets), endodontics (sealers and obturating materials), maxillofacial surgeries (implants and bone plates), prosthodontics (veneers, crowns, bridges, and acrylic resin dentures), and restorative dentistry (GIC and composites).
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Affiliation(s)
- Afsheen Mansoor
- Department of Dental Material Sciences, School of Dentistry, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad 44080, Pakistan
| | - Zohaib Khurshid
- Department of Prosthodontics and Dental Implantology, College of Dentistry, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
| | - Muhammad Talal Khan
- Department of Dental Biomaterials, Bakhtawar Amin Medical and Dental College, Multan 60650, Pakistan;
| | - Emaan Mansoor
- Islamic International Dental College, Riphah International University, Islamabad 44000, Pakistan;
| | - Faaz Ahmad Butt
- Department of Materials Engineering, NED University of Engineering & Technology, Karachi 74200, Pakistan;
| | - Asif Jamal
- Department of Microbiology, Quaid-i-Azam University, Islamabad 45320, Pakistan;
| | - Paulo J. Palma
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075 Coimbra, Portugal
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